79546520

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3907}}^1$

素因数の和:4427

約数の個数: 32

約数和(自身を含む): 179377200

約数和(自身を除く): 99830680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 3907, 4072, 5090, 7814, 10180, 15628, 19535, 20360, 31256, 39070, 78140, 156280, 1988663, 3977326, 7954652, 9943315, 15909304, 19886630, 39773260, 79546520]

約数ペア:

[(1, 79546520), (2, 39773260), (4, 19886630), (5, 15909304), (8, 9943315), (10, 7954652), (20, 3977326), (40, 1988663), (509, 156280), (1018, 78140), (2036, 39070), (2545, 31256), (3907, 20360), (4072, 19535), (5090, 15628), (7814, 10180)]