278345275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{9623}}^1$

素因数の和:9735

約数の個数: 24

約数和(自身を含む): 375913440

約数和(自身を除く): 97568165

約数列:

[1, 5, 13, 25, 65, 89, 325, 445, 1157, 2225, 5785, 9623, 28925, 48115, 125099, 240575, 625495, 856447, 3127475, 4282235, 11133811, 21411175, 55669055, 278345275]

約数ペア:

[(1, 278345275), (5, 55669055), (13, 21411175), (25, 11133811), (65, 4282235), (89, 3127475), (325, 856447), (445, 625495), (1157, 240575), (2225, 125099), (5785, 48115), (9623, 28925)]