25287980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{30839}}^1$

素因数の和:30889

約数の個数: 24

約数和(自身を含む): 54401760

約数和(自身を除く): 29113780

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 30839, 61678, 123356, 154195, 308390, 616780, 1264399, 2528798, 5057596, 6321995, 12643990, 25287980]

約数ペア:

[(1, 25287980), (2, 12643990), (4, 6321995), (5, 5057596), (10, 2528798), (20, 1264399), (41, 616780), (82, 308390), (164, 154195), (205, 123356), (410, 61678), (820, 30839)]