67744760

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1709}}^1$

素因数の和:2711

約数の個数: 32

約数和(自身を含む): 152668800

約数和(自身を除く): 84924040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1709, 1982, 3418, 3964, 4955, 6836, 7928, 8545, 9910, 13672, 17090, 19820, 34180, 39640, 68360, 1693619, 3387238, 6774476, 8468095, 13548952, 16936190, 33872380, 67744760]

約数ペア:

[(1, 67744760), (2, 33872380), (4, 16936190), (5, 13548952), (8, 8468095), (10, 6774476), (20, 3387238), (40, 1693619), (991, 68360), (1709, 39640), (1982, 34180), (3418, 19820), (3964, 17090), (4955, 13672), (6836, 9910), (7928, 8545)]