726710920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1397521}}^1$

素因数の和:1397545

約数の個数: 32

約数和(自身を含む): 1760877720

約数和(自身を除く): 1034166800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1397521, 2795042, 5590084, 6987605, 11180168, 13975210, 18167773, 27950420, 36335546, 55900840, 72671092, 90838865, 145342184, 181677730, 363355460, 726710920]

約数ペア:

[(1, 726710920), (2, 363355460), (4, 181677730), (5, 145342184), (8, 90838865), (10, 72671092), (13, 55900840), (20, 36335546), (26, 27950420), (40, 18167773), (52, 13975210), (65, 11180168), (104, 6987605), (130, 5590084), (260, 2795042), (520, 1397521)]