28849960

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2179}}^1$

素因数の和:2521

約数の個数: 32

約数和(自身を含む): 65138400

約数和(自身を除く): 36288440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2179, 2648, 3310, 4358, 6620, 8716, 10895, 13240, 17432, 21790, 43580, 87160, 721249, 1442498, 2884996, 3606245, 5769992, 7212490, 14424980, 28849960]

約数ペア:

[(1, 28849960), (2, 14424980), (4, 7212490), (5, 5769992), (8, 3606245), (10, 2884996), (20, 1442498), (40, 721249), (331, 87160), (662, 43580), (1324, 21790), (1655, 17432), (2179, 13240), (2648, 10895), (3310, 8716), (4358, 6620)]