408977420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{701}}^1\times {\mathrm{941}}^1$

素因数の和:1682

約数の個数: 48

約数和(自身を含む): 888765696

約数和(自身を除く): 479788276

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 701, 941, 1402, 1882, 2804, 3505, 3764, 4705, 7010, 9410, 14020, 18820, 21731, 29171, 43462, 58342, 86924, 108655, 116684, 145855, 217310, 291710, 434620, 583420, 659641, 1319282, 2638564, 3298205, 6596410, 13192820, 20448871, 40897742, 81795484, 102244355, 204488710, 408977420]

約数ペア:

[(1, 408977420), (2, 204488710), (4, 102244355), (5, 81795484), (10, 40897742), (20, 20448871), (31, 13192820), (62, 6596410), (124, 3298205), (155, 2638564), (310, 1319282), (620, 659641), (701, 583420), (941, 434620), (1402, 291710), (1882, 217310), (2804, 145855), (3505, 116684), (3764, 108655), (4705, 86924), (7010, 58342), (9410, 43462), (14020, 29171), (18820, 21731)]