20057188480

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1039}}^1$

素因数の和:1235

約数の個数: 256

約数和(自身を含む): 57028608000

約数和(自身を除く): 36971419520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 139, 140, 155, 160, 217, 224, 248, 278, 280, 310, 320, 434, 448, 496, 556, 560, 620, 640, 695, 868, 896, 973, 992, 1039, 1085, 1112, 1120, 1240, 1390, 1736, 1946, 1984, 2078, 2170, 2224, 2240, 2480, 2780, 3472, 3892, 3968, 4156, 4309, 4340, 4448, 4480, 4865, 4960, 5195, 5560, 6944, 7273, 7784, 8312, 8618, 8680, 8896, 9730, 9920, 10390, 11120, 13888, 14546, 15568, 16624, 17236, 17360, 17792, 19460, 19840, 20780, 21545, 22240, 27776, 29092, 30163, 31136, 32209, 33248, 34472, 34720, 36365, 38920, 41560, 43090, 44480, 58184, 60326, 62272, 64418, 66496, 68944, 69440, 72730, 77840, 83120, 86180, 88960, 116368, 120652, 124544, 128836, 132992, 137888, 138880, 144421, 145460, 150815, 155680, 161045, 166240, 172360, 225463, 232736, 241304, 257672, 275776, 288842, 290920, 301630, 311360, 322090, 332480, 344720, 450926, 465472, 482608, 515344, 551552, 577684, 581840, 603260, 622720, 644180, 664960, 689440, 722105, 901852, 930944, 965216, 1010947, 1030688, 1127315, 1155368, 1163680, 1206520, 1288360, 1378880, 1444210, 1803704, 1930432, 2021894, 2061376, 2254630, 2310736, 2327360, 2413040, 2576720, 2757760, 2888420, 3607408, 3860864, 4043788, 4122752, 4477051, 4509260, 4621472, 4654720, 4826080, 5054735, 5153440, 5776840, 7214816, 8087576, 8954102, 9018520, 9242944, 9652160, 10109470, 10306880, 11553680, 14429632, 16175152, 17908204, 18037040, 18485888, 19304320, 20218940, 20613760, 22385255, 23107360, 28859264, 31339357, 32350304, 35816408, 36074080, 40437880, 44770510, 46214720, 62678714, 64700608, 71632816, 72148160, 80875760, 89541020, 92429440, 125357428, 129401216, 143265632, 144296320, 156696785, 161751520, 179082040, 250714856, 286531264, 313393570, 323503040, 358164080, 501429712, 573062528, 626787140, 647006080, 716328160, 1002859424, 1253574280, 1432656320, 2005718848, 2507148560, 2865312640, 4011437696, 5014297120, 10028594240, 20057188480]

約数ペア:

[(1, 20057188480), (2, 10028594240), (4, 5014297120), (5, 4011437696), (7, 2865312640), (8, 2507148560), (10, 2005718848), (14, 1432656320), (16, 1253574280), (20, 1002859424), (28, 716328160), (31, 647006080), (32, 626787140), (35, 573062528), (40, 501429712), (56, 358164080), (62, 323503040), (64, 313393570), (70, 286531264), (80, 250714856), (112, 179082040), (124, 161751520), (128, 156696785), (139, 144296320), (140, 143265632), (155, 129401216), (160, 125357428), (217, 92429440), (224, 89541020), (248, 80875760), (278, 72148160), (280, 71632816), (310, 64700608), (320, 62678714), (434, 46214720), (448, 44770510), (496, 40437880), (556, 36074080), (560, 35816408), (620, 32350304), (640, 31339357), (695, 28859264), (868, 23107360), (896, 22385255), (973, 20613760), (992, 20218940), (1039, 19304320), (1085, 18485888), (1112, 18037040), (1120, 17908204), (1240, 16175152), (1390, 14429632), (1736, 11553680), (1946, 10306880), (1984, 10109470), (2078, 9652160), (2170, 9242944), (2224, 9018520), (2240, 8954102), (2480, 8087576), (2780, 7214816), (3472, 5776840), (3892, 5153440), (3968, 5054735), (4156, 4826080), (4309, 4654720), (4340, 4621472), (4448, 4509260), (4480, 4477051), (4865, 4122752), (4960, 4043788), (5195, 3860864), (5560, 3607408), (6944, 2888420), (7273, 2757760), (7784, 2576720), (8312, 2413040), (8618, 2327360), (8680, 2310736), (8896, 2254630), (9730, 2061376), (9920, 2021894), (10390, 1930432), (11120, 1803704), (13888, 1444210), (14546, 1378880), (15568, 1288360), (16624, 1206520), (17236, 1163680), (17360, 1155368), (17792, 1127315), (19460, 1030688), (19840, 1010947), (20780, 965216), (21545, 930944), (22240, 901852), (27776, 722105), (29092, 689440), (30163, 664960), (31136, 644180), (32209, 622720), (33248, 603260), (34472, 581840), (34720, 577684), (36365, 551552), (38920, 515344), (41560, 482608), (43090, 465472), (44480, 450926), (58184, 344720), (60326, 332480), (62272, 322090), (64418, 311360), (66496, 301630), (68944, 290920), (69440, 288842), (72730, 275776), (77840, 257672), (83120, 241304), (86180, 232736), (88960, 225463), (116368, 172360), (120652, 166240), (124544, 161045), (128836, 155680), (132992, 150815), (137888, 145460), (138880, 144421)]