221999680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:217

約数の個数: 224

約数和(自身を含む): 655441920

約数和(自身を除く): 433442240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 32, 35, 40, 46, 56, 62, 64, 70, 80, 92, 112, 115, 124, 139, 140, 155, 160, 161, 184, 217, 224, 230, 248, 278, 280, 310, 320, 322, 368, 434, 448, 460, 496, 556, 560, 620, 644, 695, 713, 736, 805, 868, 920, 973, 992, 1085, 1112, 1120, 1240, 1288, 1390, 1426, 1472, 1610, 1736, 1840, 1946, 1984, 2170, 2224, 2240, 2480, 2576, 2780, 2852, 3197, 3220, 3472, 3565, 3680, 3892, 4309, 4340, 4448, 4865, 4960, 4991, 5152, 5560, 5704, 6394, 6440, 6944, 7130, 7360, 7784, 8618, 8680, 8896, 9730, 9920, 9982, 10304, 11120, 11408, 12788, 12880, 13888, 14260, 15568, 15985, 17236, 17360, 19460, 19964, 21545, 22240, 22379, 22816, 24955, 25576, 25760, 28520, 30163, 31136, 31970, 34472, 34720, 38920, 39928, 43090, 44480, 44758, 45632, 49910, 51152, 51520, 57040, 60326, 62272, 63940, 68944, 69440, 77840, 79856, 86180, 89516, 99107, 99820, 102304, 111895, 114080, 120652, 127880, 137888, 150815, 155680, 159712, 172360, 179032, 198214, 199640, 204608, 223790, 228160, 241304, 255760, 275776, 301630, 311360, 319424, 344720, 358064, 396428, 399280, 447580, 482608, 495535, 511520, 603260, 689440, 693749, 716128, 792856, 798560, 895160, 965216, 991070, 1023040, 1206520, 1378880, 1387498, 1432256, 1585712, 1597120, 1790320, 1930432, 1982140, 2413040, 2774996, 3171424, 3468745, 3580640, 3964280, 4826080, 5549992, 6342848, 6937490, 7161280, 7928560, 9652160, 11099984, 13874980, 15857120, 22199968, 27749960, 31714240, 44399936, 55499920, 110999840, 221999680]

約数ペア:

[(1, 221999680), (2, 110999840), (4, 55499920), (5, 44399936), (7, 31714240), (8, 27749960), (10, 22199968), (14, 15857120), (16, 13874980), (20, 11099984), (23, 9652160), (28, 7928560), (31, 7161280), (32, 6937490), (35, 6342848), (40, 5549992), (46, 4826080), (56, 3964280), (62, 3580640), (64, 3468745), (70, 3171424), (80, 2774996), (92, 2413040), (112, 1982140), (115, 1930432), (124, 1790320), (139, 1597120), (140, 1585712), (155, 1432256), (160, 1387498), (161, 1378880), (184, 1206520), (217, 1023040), (224, 991070), (230, 965216), (248, 895160), (278, 798560), (280, 792856), (310, 716128), (320, 693749), (322, 689440), (368, 603260), (434, 511520), (448, 495535), (460, 482608), (496, 447580), (556, 399280), (560, 396428), (620, 358064), (644, 344720), (695, 319424), (713, 311360), (736, 301630), (805, 275776), (868, 255760), (920, 241304), (973, 228160), (992, 223790), (1085, 204608), (1112, 199640), (1120, 198214), (1240, 179032), (1288, 172360), (1390, 159712), (1426, 155680), (1472, 150815), (1610, 137888), (1736, 127880), (1840, 120652), (1946, 114080), (1984, 111895), (2170, 102304), (2224, 99820), (2240, 99107), (2480, 89516), (2576, 86180), (2780, 79856), (2852, 77840), (3197, 69440), (3220, 68944), (3472, 63940), (3565, 62272), (3680, 60326), (3892, 57040), (4309, 51520), (4340, 51152), (4448, 49910), (4865, 45632), (4960, 44758), (4991, 44480), (5152, 43090), (5560, 39928), (5704, 38920), (6394, 34720), (6440, 34472), (6944, 31970), (7130, 31136), (7360, 30163), (7784, 28520), (8618, 25760), (8680, 25576), (8896, 24955), (9730, 22816), (9920, 22379), (9982, 22240), (10304, 21545), (11120, 19964), (11408, 19460), (12788, 17360), (12880, 17236), (13888, 15985), (14260, 15568)]