90390640

素因数分解:

$2^4\times 5^1\times {\mathrm{277}}^1\times {\mathrm{4079}}^1$

素因数の和:4369

約数の個数: 40

約数和(自身を含む): 210968640

約数和(自身を除く): 120578000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277, 554, 1108, 1385, 2216, 2770, 4079, 4432, 5540, 8158, 11080, 16316, 20395, 22160, 32632, 40790, 65264, 81580, 163160, 326320, 1129883, 2259766, 4519532, 5649415, 9039064, 11298830, 18078128, 22597660, 45195320, 90390640]

約数ペア:

[(1, 90390640), (2, 45195320), (4, 22597660), (5, 18078128), (8, 11298830), (10, 9039064), (16, 5649415), (20, 4519532), (40, 2259766), (80, 1129883), (277, 326320), (554, 163160), (1108, 81580), (1385, 65264), (2216, 40790), (2770, 32632), (4079, 22160), (4432, 20395), (5540, 16316), (8158, 11080)]