25972700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19979}}^1$

素因数の和:20006

約数の個数: 36

約数和(自身を含む): 60699240

約数和(自身を除く): 34726540

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 19979, 39958, 79916, 99895, 199790, 259727, 399580, 499475, 519454, 998950, 1038908, 1298635, 1997900, 2597270, 5194540, 6493175, 12986350, 25972700]

約数ペア:

[(1, 25972700), (2, 12986350), (4, 6493175), (5, 5194540), (10, 2597270), (13, 1997900), (20, 1298635), (25, 1038908), (26, 998950), (50, 519454), (52, 499475), (65, 399580), (100, 259727), (130, 199790), (260, 99895), (325, 79916), (650, 39958), (1300, 19979)]