90890680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2027}}^1$

素因数の和:2116

約数の個数: 64

約数和(自身を含む): 219024000

約数和(自身を除く): 128133320

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, 2027, 2242, 2360, 4054, 4484, 5605, 8108, 8968, 10135, 11210, 16216, 20270, 22420, 38513, 40540, 44840, 77026, 81080, 119593, 154052, 192565, 239186, 308104, 385130, 478372, 597965, 770260, 956744, 1195930, 1540520, 2272267, 2391860, 4544534, 4783720, 9089068, 11361335, 18178136, 22722670, 45445340, 90890680]

約数ペア:

[(1, 90890680), (2, 45445340), (4, 22722670), (5, 18178136), (8, 11361335), (10, 9089068), (19, 4783720), (20, 4544534), (38, 2391860), (40, 2272267), (59, 1540520), (76, 1195930), (95, 956744), (118, 770260), (152, 597965), (190, 478372), (236, 385130), (295, 308104), (380, 239186), (472, 192565), (590, 154052), (760, 119593), (1121, 81080), (1180, 77026), (2027, 44840), (2242, 40540), (2360, 38513), (4054, 22420), (4484, 20270), (5605, 16216), (8108, 11210), (8968, 10135)]