64728775

素因数分解:

$5^2\times {\mathrm{17}}^4\times {\mathrm{31}}^1$

素因数の和:109

約数の個数: 30

約数和(自身を含む): 88031072

約数和(自身を除く): 23302297

約数列:

[1, 5, 17, 25, 31, 85, 155, 289, 425, 527, 775, 1445, 2635, 4913, 7225, 8959, 13175, 24565, 44795, 83521, 122825, 152303, 223975, 417605, 761515, 2088025, 2589151, 3807575, 12945755, 64728775]

約数ペア:

[(1, 64728775), (5, 12945755), (17, 3807575), (25, 2589151), (31, 2088025), (85, 761515), (155, 417605), (289, 223975), (425, 152303), (527, 122825), (775, 83521), (1445, 44795), (2635, 24565), (4913, 13175), (7225, 8959)]