80569840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77471}}^1$

素因数の和:77497

約数の個数: 40

約数和(自身を含む): 201737088

約数和(自身を除く): 121167248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 77471, 154942, 309884, 387355, 619768, 774710, 1007123, 1239536, 1549420, 2014246, 3098840, 4028492, 5035615, 6197680, 8056984, 10071230, 16113968, 20142460, 40284920, 80569840]

約数ペア:

[(1, 80569840), (2, 40284920), (4, 20142460), (5, 16113968), (8, 10071230), (10, 8056984), (13, 6197680), (16, 5035615), (20, 4028492), (26, 3098840), (40, 2014246), (52, 1549420), (65, 1239536), (80, 1007123), (104, 774710), (130, 619768), (208, 387355), (260, 309884), (520, 154942), (1040, 77471)]