90173240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2011}}^1$

素因数の和:2100

約数の個数: 64

約数和(自身を含む): 217296000

約数和(自身を除く): 127122760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 59, 76, 95, 118, 152, 190, 236, 295, 380, 472, 590, 760, 1121, 1180, 2011, 2242, 2360, 4022, 4484, 5605, 8044, 8968, 10055, 11210, 16088, 20110, 22420, 38209, 40220, 44840, 76418, 80440, 118649, 152836, 191045, 237298, 305672, 382090, 474596, 593245, 764180, 949192, 1186490, 1528360, 2254331, 2372980, 4508662, 4745960, 9017324, 11271655, 18034648, 22543310, 45086620, 90173240]

約数ペア:

[(1, 90173240), (2, 45086620), (4, 22543310), (5, 18034648), (8, 11271655), (10, 9017324), (19, 4745960), (20, 4508662), (38, 2372980), (40, 2254331), (59, 1528360), (76, 1186490), (95, 949192), (118, 764180), (152, 593245), (190, 474596), (236, 382090), (295, 305672), (380, 237298), (472, 191045), (590, 152836), (760, 118649), (1121, 80440), (1180, 76418), (2011, 44840), (2242, 40220), (2360, 38209), (4022, 22420), (4484, 20110), (5605, 16088), (8044, 11210), (8968, 10055)]