80335840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2971}}^1$

素因数の和:3012

約数の個数: 72

約数和(自身を含む): 205585128

約数和(自身を除く): 125249288

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1690, 2080, 2704, 2971, 3380, 5408, 5942, 6760, 11884, 13520, 14855, 23768, 27040, 29710, 38623, 47536, 59420, 77246, 95072, 118840, 154492, 193115, 237680, 308984, 386230, 475360, 502099, 617968, 772460, 1004198, 1235936, 1544920, 2008396, 2510495, 3089840, 4016792, 5020990, 6179680, 8033584, 10041980, 16067168, 20083960, 40167920, 80335840]

約数ペア:

[(1, 80335840), (2, 40167920), (4, 20083960), (5, 16067168), (8, 10041980), (10, 8033584), (13, 6179680), (16, 5020990), (20, 4016792), (26, 3089840), (32, 2510495), (40, 2008396), (52, 1544920), (65, 1235936), (80, 1004198), (104, 772460), (130, 617968), (160, 502099), (169, 475360), (208, 386230), (260, 308984), (338, 237680), (416, 193115), (520, 154492), (676, 118840), (845, 95072), (1040, 77246), (1352, 59420), (1690, 47536), (2080, 38623), (2704, 29710), (2971, 27040), (3380, 23768), (5408, 14855), (5942, 13520), (6760, 11884)]