25391480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20477}}^1$

素因数の和:20519

約数の個数: 32

約数和(自身を含む): 58976640

約数和(自身を除く): 33585160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 20477, 40954, 81908, 102385, 163816, 204770, 409540, 634787, 819080, 1269574, 2539148, 3173935, 5078296, 6347870, 12695740, 25391480]

約数ペア:

[(1, 25391480), (2, 12695740), (4, 6347870), (5, 5078296), (8, 3173935), (10, 2539148), (20, 1269574), (31, 819080), (40, 634787), (62, 409540), (124, 204770), (155, 163816), (248, 102385), (310, 81908), (620, 40954), (1240, 20477)]