78296920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{150571}}^1$

素因数の和:150595

約数の個数: 32

約数和(自身を含む): 189720720

約数和(自身を除く): 111423800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 150571, 301142, 602284, 752855, 1204568, 1505710, 1957423, 3011420, 3914846, 6022840, 7829692, 9787115, 15659384, 19574230, 39148460, 78296920]

約数ペア:

[(1, 78296920), (2, 39148460), (4, 19574230), (5, 15659384), (8, 9787115), (10, 7829692), (13, 6022840), (20, 3914846), (26, 3011420), (40, 1957423), (52, 1505710), (65, 1204568), (104, 752855), (130, 602284), (260, 301142), (520, 150571)]