99720920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 255104640

約数和(自身を除く): 155383720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 71, 73, 74, 104, 130, 142, 146, 148, 185, 260, 284, 292, 296, 355, 365, 370, 481, 520, 568, 584, 710, 730, 740, 923, 949, 962, 1420, 1460, 1480, 1846, 1898, 1924, 2405, 2627, 2701, 2840, 2920, 3692, 3796, 3848, 4615, 4745, 4810, 5183, 5254, 5402, 7384, 7592, 9230, 9490, 9620, 10366, 10508, 10804, 13135, 13505, 18460, 18980, 19240, 20732, 21016, 21608, 25915, 26270, 27010, 34151, 35113, 36920, 37960, 41464, 51830, 52540, 54020, 67379, 68302, 70226, 103660, 105080, 108040, 134758, 136604, 140452, 170755, 175565, 191771, 207320, 269516, 273208, 280904, 336895, 341510, 351130, 383542, 539032, 673790, 683020, 702260, 767084, 958855, 1347580, 1366040, 1404520, 1534168, 1917710, 2493023, 2695160, 3835420, 4986046, 7670840, 9972092, 12465115, 19944184, 24930230, 49860460, 99720920]

約数ペア:

[(1, 99720920), (2, 49860460), (4, 24930230), (5, 19944184), (8, 12465115), (10, 9972092), (13, 7670840), (20, 4986046), (26, 3835420), (37, 2695160), (40, 2493023), (52, 1917710), (65, 1534168), (71, 1404520), (73, 1366040), (74, 1347580), (104, 958855), (130, 767084), (142, 702260), (146, 683020), (148, 673790), (185, 539032), (260, 383542), (284, 351130), (292, 341510), (296, 336895), (355, 280904), (365, 273208), (370, 269516), (481, 207320), (520, 191771), (568, 175565), (584, 170755), (710, 140452), (730, 136604), (740, 134758), (923, 108040), (949, 105080), (962, 103660), (1420, 70226), (1460, 68302), (1480, 67379), (1846, 54020), (1898, 52540), (1924, 51830), (2405, 41464), (2627, 37960), (2701, 36920), (2840, 35113), (2920, 34151), (3692, 27010), (3796, 26270), (3848, 25915), (4615, 21608), (4745, 21016), (4810, 20732), (5183, 19240), (5254, 18980), (5402, 18460), (7384, 13505), (7592, 13135), (9230, 10804), (9490, 10508), (9620, 10366)]