78821428

素因数分解:

$2^2\times 7^1\times {\mathrm{1321}}^1\times {\mathrm{2131}}^1$

素因数の和:3463

約数の個数: 24

約数和(自身を含む): 157836224

約数和(自身を除く): 79014796

約数列:

[1, 2, 4, 7, 14, 28, 1321, 2131, 2642, 4262, 5284, 8524, 9247, 14917, 18494, 29834, 36988, 59668, 2815051, 5630102, 11260204, 19705357, 39410714, 78821428]

約数ペア:

[(1, 78821428), (2, 39410714), (4, 19705357), (7, 11260204), (14, 5630102), (28, 2815051), (1321, 59668), (2131, 36988), (2642, 29834), (4262, 18494), (5284, 14917), (8524, 9247)]