280975175

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{911}}^1$

素因数の和:1020

約数の個数: 36

約数和(自身を含む): 382859424

約数和(自身を除く): 101884249

約数列:

[1, 5, 13, 25, 65, 73, 169, 325, 365, 845, 911, 949, 1825, 4225, 4555, 4745, 11843, 12337, 22775, 23725, 59215, 61685, 66503, 153959, 296075, 308425, 332515, 769795, 864539, 1662575, 3848975, 4322695, 11239007, 21613475, 56195035, 280975175]

約数ペア:

[(1, 280975175), (5, 56195035), (13, 21613475), (25, 11239007), (65, 4322695), (73, 3848975), (169, 1662575), (325, 864539), (365, 769795), (845, 332515), (911, 308425), (949, 296075), (1825, 153959), (4225, 66503), (4555, 61685), (4745, 59215), (11843, 23725), (12337, 22775)]