647288876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{185789}}^1$

素因数の和:185873

約数の個数: 24

約数和(自身を含む): 1238104560

約数和(自身を除く): 590815684

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 185789, 371578, 743156, 2415257, 4830514, 9661028, 12447863, 24895726, 49791452, 161822219, 323644438, 647288876]

約数ペア:

[(1, 647288876), (2, 323644438), (4, 161822219), (13, 49791452), (26, 24895726), (52, 12447863), (67, 9661028), (134, 4830514), (268, 2415257), (871, 743156), (1742, 371578), (3484, 185789)]