19845540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:299

約数の個数: 192

約数和(自身を含む): 72817920

約数和(自身を除く): 52972380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 27, 30, 33, 36, 39, 44, 45, 52, 54, 55, 60, 65, 66, 78, 90, 99, 108, 110, 117, 130, 132, 135, 143, 156, 165, 180, 195, 198, 220, 234, 257, 260, 270, 286, 297, 330, 351, 390, 396, 429, 468, 495, 514, 540, 572, 585, 594, 660, 702, 715, 771, 780, 858, 990, 1028, 1170, 1188, 1285, 1287, 1404, 1430, 1485, 1542, 1716, 1755, 1980, 2145, 2313, 2340, 2570, 2574, 2827, 2860, 2970, 3084, 3341, 3510, 3855, 3861, 4290, 4626, 5140, 5148, 5654, 5940, 6435, 6682, 6939, 7020, 7710, 7722, 8481, 8580, 9252, 10023, 11308, 11565, 12870, 13364, 13878, 14135, 15420, 15444, 16705, 16962, 19305, 20046, 23130, 25443, 25740, 27756, 28270, 30069, 33410, 33924, 34695, 36751, 38610, 40092, 42405, 46260, 50115, 50886, 56540, 60138, 66820, 69390, 73502, 76329, 77220, 84810, 90207, 100230, 101772, 110253, 120276, 127215, 138780, 147004, 150345, 152658, 169620, 180414, 183755, 200460, 220506, 254430, 300690, 305316, 330759, 360828, 367510, 381645, 441012, 451035, 508860, 551265, 601380, 661518, 735020, 763290, 902070, 992277, 1102530, 1323036, 1526580, 1653795, 1804140, 1984554, 2205060, 3307590, 3969108, 4961385, 6615180, 9922770, 19845540]

約数ペア:

[(1, 19845540), (2, 9922770), (3, 6615180), (4, 4961385), (5, 3969108), (6, 3307590), (9, 2205060), (10, 1984554), (11, 1804140), (12, 1653795), (13, 1526580), (15, 1323036), (18, 1102530), (20, 992277), (22, 902070), (26, 763290), (27, 735020), (30, 661518), (33, 601380), (36, 551265), (39, 508860), (44, 451035), (45, 441012), (52, 381645), (54, 367510), (55, 360828), (60, 330759), (65, 305316), (66, 300690), (78, 254430), (90, 220506), (99, 200460), (108, 183755), (110, 180414), (117, 169620), (130, 152658), (132, 150345), (135, 147004), (143, 138780), (156, 127215), (165, 120276), (180, 110253), (195, 101772), (198, 100230), (220, 90207), (234, 84810), (257, 77220), (260, 76329), (270, 73502), (286, 69390), (297, 66820), (330, 60138), (351, 56540), (390, 50886), (396, 50115), (429, 46260), (468, 42405), (495, 40092), (514, 38610), (540, 36751), (572, 34695), (585, 33924), (594, 33410), (660, 30069), (702, 28270), (715, 27756), (771, 25740), (780, 25443), (858, 23130), (990, 20046), (1028, 19305), (1170, 16962), (1188, 16705), (1285, 15444), (1287, 15420), (1404, 14135), (1430, 13878), (1485, 13364), (1542, 12870), (1716, 11565), (1755, 11308), (1980, 10023), (2145, 9252), (2313, 8580), (2340, 8481), (2570, 7722), (2574, 7710), (2827, 7020), (2860, 6939), (2970, 6682), (3084, 6435), (3341, 5940), (3510, 5654), (3855, 5148), (3861, 5140), (4290, 4626)]