2019412625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 2757680640

約数和(自身を除く): 738268015

約数列:

[1, 5, 19, 25, 53, 61, 95, 125, 263, 265, 305, 475, 1007, 1159, 1315, 1325, 1525, 2375, 3233, 4997, 5035, 5795, 6575, 6625, 7625, 13939, 16043, 16165, 24985, 25175, 28975, 32875, 61427, 69695, 80215, 80825, 124925, 125875, 144875, 264841, 304817, 307135, 348475, 401075, 404125, 624625, 850279, 1324205, 1524085, 1535675, 1742375, 2005375, 4251395, 6621025, 7620425, 7678375, 16155301, 21256975, 33105125, 38102125, 80776505, 106284875, 403882525, 2019412625]

約数ペア:

[(1, 2019412625), (5, 403882525), (19, 106284875), (25, 80776505), (53, 38102125), (61, 33105125), (95, 21256975), (125, 16155301), (263, 7678375), (265, 7620425), (305, 6621025), (475, 4251395), (1007, 2005375), (1159, 1742375), (1315, 1535675), (1325, 1524085), (1525, 1324205), (2375, 850279), (3233, 624625), (4997, 404125), (5035, 401075), (5795, 348475), (6575, 307135), (6625, 304817), (7625, 264841), (13939, 144875), (16043, 125875), (16165, 124925), (24985, 80825), (25175, 80215), (28975, 69695), (32875, 61427)]