90700796

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{389}}^1\times {\mathrm{821}}^1$

素因数の和:1285

約数の個数: 24

約数和(自身を含む): 161572320

約数和(自身を除く): 70871524

約数列:

[1, 2, 4, 71, 142, 284, 389, 778, 821, 1556, 1642, 3284, 27619, 55238, 58291, 110476, 116582, 233164, 319369, 638738, 1277476, 22675199, 45350398, 90700796]

約数ペア:

[(1, 90700796), (2, 45350398), (4, 22675199), (71, 1277476), (142, 638738), (284, 319369), (389, 233164), (778, 116582), (821, 110476), (1556, 58291), (1642, 55238), (3284, 27619)]