278340235

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{2713}}^1$

素因数の和:2823

約数の個数: 24

約数和(自身を含む): 359941536

約数和(自身を除く): 81601301

約数列:

[1, 5, 17, 71, 85, 289, 355, 1207, 1445, 2713, 6035, 13565, 20519, 46121, 102595, 192623, 230605, 784057, 963115, 3274591, 3920285, 16372955, 55668047, 278340235]

約数ペア:

[(1, 278340235), (5, 55668047), (17, 16372955), (71, 3920285), (85, 3274591), (289, 963115), (355, 784057), (1207, 230605), (1445, 192623), (2713, 102595), (6035, 46121), (13565, 20519)]