90417640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{307}}^1$

素因数の和:554

約数の個数: 64

約数和(自身を含む): 210672000

約数和(自身を除く): 120254360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 199, 296, 307, 370, 398, 614, 740, 796, 995, 1228, 1480, 1535, 1592, 1990, 2456, 3070, 3980, 6140, 7363, 7960, 11359, 12280, 14726, 22718, 29452, 36815, 45436, 56795, 58904, 61093, 73630, 90872, 113590, 122186, 147260, 227180, 244372, 294520, 305465, 454360, 488744, 610930, 1221860, 2260441, 2443720, 4520882, 9041764, 11302205, 18083528, 22604410, 45208820, 90417640]

約数ペア:

[(1, 90417640), (2, 45208820), (4, 22604410), (5, 18083528), (8, 11302205), (10, 9041764), (20, 4520882), (37, 2443720), (40, 2260441), (74, 1221860), (148, 610930), (185, 488744), (199, 454360), (296, 305465), (307, 294520), (370, 244372), (398, 227180), (614, 147260), (740, 122186), (796, 113590), (995, 90872), (1228, 73630), (1480, 61093), (1535, 58904), (1592, 56795), (1990, 45436), (2456, 36815), (3070, 29452), (3980, 22718), (6140, 14726), (7363, 12280), (7960, 11359)]