90180560

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{21269}}^1$

素因数の和:21335

約数の個数: 40

約数和(自身を含む): 213635880

約数和(自身を除く): 123455320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 21269, 42538, 85076, 106345, 170152, 212690, 340304, 425380, 850760, 1127257, 1701520, 2254514, 4509028, 5636285, 9018056, 11272570, 18036112, 22545140, 45090280, 90180560]

約数ペア:

[(1, 90180560), (2, 45090280), (4, 22545140), (5, 18036112), (8, 11272570), (10, 9018056), (16, 5636285), (20, 4509028), (40, 2254514), (53, 1701520), (80, 1127257), (106, 850760), (212, 425380), (265, 340304), (424, 212690), (530, 170152), (848, 106345), (1060, 85076), (2120, 42538), (4240, 21269)]