71387920

素因数分解:

$2^4\times 5^1\times {\mathrm{919}}^1\times {\mathrm{971}}^1$

素因数の和:1903

約数の個数: 40

約数和(自身を含む): 166328640

約数和(自身を除く): 94940720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 919, 971, 1838, 1942, 3676, 3884, 4595, 4855, 7352, 7768, 9190, 9710, 14704, 15536, 18380, 19420, 36760, 38840, 73520, 77680, 892349, 1784698, 3569396, 4461745, 7138792, 8923490, 14277584, 17846980, 35693960, 71387920]

約数ペア:

[(1, 71387920), (2, 35693960), (4, 17846980), (5, 14277584), (8, 8923490), (10, 7138792), (16, 4461745), (20, 3569396), (40, 1784698), (80, 892349), (919, 77680), (971, 73520), (1838, 38840), (1942, 36760), (3676, 19420), (3884, 18380), (4595, 15536), (4855, 14704), (7352, 9710), (7768, 9190)]