15762500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 37513224

約数和(自身を除く): 21750724

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 97, 100, 125, 130, 194, 250, 260, 325, 388, 485, 500, 625, 650, 970, 1250, 1261, 1300, 1625, 1940, 2425, 2500, 2522, 3125, 3250, 4850, 5044, 6250, 6305, 6500, 8125, 9700, 12125, 12500, 12610, 16250, 24250, 25220, 31525, 32500, 40625, 48500, 60625, 63050, 81250, 121250, 126100, 157625, 162500, 242500, 303125, 315250, 606250, 630500, 788125, 1212500, 1576250, 3152500, 3940625, 7881250, 15762500]

約数ペア:

[(1, 15762500), (2, 7881250), (4, 3940625), (5, 3152500), (10, 1576250), (13, 1212500), (20, 788125), (25, 630500), (26, 606250), (50, 315250), (52, 303125), (65, 242500), (97, 162500), (100, 157625), (125, 126100), (130, 121250), (194, 81250), (250, 63050), (260, 60625), (325, 48500), (388, 40625), (485, 32500), (500, 31525), (625, 25220), (650, 24250), (970, 16250), (1250, 12610), (1261, 12500), (1300, 12125), (1625, 9700), (1940, 8125), (2425, 6500), (2500, 6305), (2522, 6250), (3125, 5044), (3250, 4850)]