678946775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1489}}^1$

素因数の和:1596

約数の個数: 48

約数和(自身を含む): 962230080

約数和(自身を除く): 283283305

約数列:

[1, 5, 13, 23, 25, 61, 65, 115, 299, 305, 325, 575, 793, 1403, 1489, 1495, 1525, 3965, 7015, 7445, 7475, 18239, 19357, 19825, 34247, 35075, 37225, 90829, 91195, 96785, 171235, 445211, 454145, 455975, 483925, 856175, 1180777, 2089067, 2226055, 2270725, 5903885, 10445335, 11130275, 27157871, 29519425, 52226675, 135789355, 678946775]

約数ペア:

[(1, 678946775), (5, 135789355), (13, 52226675), (23, 29519425), (25, 27157871), (61, 11130275), (65, 10445335), (115, 5903885), (299, 2270725), (305, 2226055), (325, 2089067), (575, 1180777), (793, 856175), (1403, 483925), (1489, 455975), (1495, 454145), (1525, 445211), (3965, 171235), (7015, 96785), (7445, 91195), (7475, 90829), (18239, 37225), (19357, 35075), (19825, 34247)]