80406520

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{6073}}^1$

素因数の和:6415

約数の個数: 32

約数和(自身を含む): 181491120

約数和(自身を除く): 101084600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6073, 6620, 12146, 13240, 24292, 30365, 48584, 60730, 121460, 242920, 2010163, 4020326, 8040652, 10050815, 16081304, 20101630, 40203260, 80406520]

約数ペア:

[(1, 80406520), (2, 40203260), (4, 20101630), (5, 16081304), (8, 10050815), (10, 8040652), (20, 4020326), (40, 2010163), (331, 242920), (662, 121460), (1324, 60730), (1655, 48584), (2648, 30365), (3310, 24292), (6073, 13240), (6620, 12146)]