210323425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^2$

素因数の和:290

約数の個数: 36

約数和(自身を含む): 288265404

約数和(自身を除く): 77941979

約数列:

[1, 5, 13, 25, 61, 65, 103, 305, 325, 515, 793, 1339, 1525, 2575, 3965, 6283, 6695, 10609, 19825, 31415, 33475, 53045, 81679, 137917, 157075, 265225, 408395, 647149, 689585, 2041975, 3235745, 3447925, 8412937, 16178725, 42064685, 210323425]

約数ペア:

[(1, 210323425), (5, 42064685), (13, 16178725), (25, 8412937), (61, 3447925), (65, 3235745), (103, 2041975), (305, 689585), (325, 647149), (515, 408395), (793, 265225), (1339, 157075), (1525, 137917), (2575, 81679), (3965, 53045), (6283, 33475), (6695, 31415), (10609, 19825)]