391287455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1\times {\mathrm{487}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 519450624

約数和(自身を除く): 128163169

約数列:

[1, 5, 13, 47, 65, 235, 263, 487, 611, 1315, 2435, 3055, 3419, 6331, 12361, 17095, 22889, 31655, 61805, 114445, 128081, 160693, 297557, 640405, 803465, 1487785, 1665053, 6019807, 8325265, 30099035, 78257491, 391287455]

約数ペア:

[(1, 391287455), (5, 78257491), (13, 30099035), (47, 8325265), (65, 6019807), (235, 1665053), (263, 1487785), (487, 803465), (611, 640405), (1315, 297557), (2435, 160693), (3055, 128081), (3419, 114445), (6331, 61805), (12361, 31655), (17095, 22889)]