25741625

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 64

約数和(自身を含む): 41373696

約数和(自身を除く): 15632071

約数列:

[1, 5, 7, 13, 25, 31, 35, 65, 73, 91, 125, 155, 175, 217, 325, 365, 403, 455, 511, 775, 875, 949, 1085, 1625, 1825, 2015, 2263, 2275, 2555, 2821, 3875, 4745, 5425, 6643, 9125, 10075, 11315, 11375, 12775, 14105, 15841, 23725, 27125, 29419, 33215, 50375, 56575, 63875, 70525, 79205, 118625, 147095, 166075, 205933, 282875, 352625, 396025, 735475, 830375, 1029665, 1980125, 3677375, 5148325, 25741625]

約数ペア:

[(1, 25741625), (5, 5148325), (7, 3677375), (13, 1980125), (25, 1029665), (31, 830375), (35, 735475), (65, 396025), (73, 352625), (91, 282875), (125, 205933), (155, 166075), (175, 147095), (217, 118625), (325, 79205), (365, 70525), (403, 63875), (455, 56575), (511, 50375), (775, 33215), (875, 29419), (949, 27125), (1085, 23725), (1625, 15841), (1825, 14105), (2015, 12775), (2263, 11375), (2275, 11315), (2555, 10075), (2821, 9125), (3875, 6643), (4745, 5425)]