90246890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{3271}}^1$

素因数の和:3398

約数の個数: 32

約数和(自身を含む): 169620480

約数和(自身を除く): 79373590

約数列:

[1, 2, 5, 10, 31, 62, 89, 155, 178, 310, 445, 890, 2759, 3271, 5518, 6542, 13795, 16355, 27590, 32710, 101401, 202802, 291119, 507005, 582238, 1014010, 1455595, 2911190, 9024689, 18049378, 45123445, 90246890]

約数ペア:

[(1, 90246890), (2, 45123445), (5, 18049378), (10, 9024689), (31, 2911190), (62, 1455595), (89, 1014010), (155, 582238), (178, 507005), (310, 291119), (445, 202802), (890, 101401), (2759, 32710), (3271, 27590), (5518, 16355), (6542, 13795)]