19514725

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:154

約数の個数: 36

約数和(自身を含む): 26761804

約数和(自身を除く): 7247079

約数列:

[1, 5, 17, 25, 37, 73, 85, 185, 289, 365, 425, 629, 925, 1241, 1445, 1825, 2701, 3145, 6205, 7225, 10693, 13505, 15725, 21097, 31025, 45917, 53465, 67525, 105485, 229585, 267325, 527425, 780589, 1147925, 3902945, 19514725]

約数ペア:

[(1, 19514725), (5, 3902945), (17, 1147925), (25, 780589), (37, 527425), (73, 267325), (85, 229585), (185, 105485), (289, 67525), (365, 53465), (425, 45917), (629, 31025), (925, 21097), (1241, 15725), (1445, 13505), (1825, 10693), (2701, 7225), (3145, 6205)]