2081899760

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{65551}}^1$

素因数の和:65961

約数の個数: 40

約数和(自身を含む): 4852683456

約数和(自身を除く): 2770783696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 3176, 3970, 6352, 7940, 15880, 31760, 65551, 131102, 262204, 327755, 524408, 655510, 1048816, 1311020, 2622040, 5244080, 26023747, 52047494, 104094988, 130118735, 208189976, 260237470, 416379952, 520474940, 1040949880, 2081899760]

約数ペア:

[(1, 2081899760), (2, 1040949880), (4, 520474940), (5, 416379952), (8, 260237470), (10, 208189976), (16, 130118735), (20, 104094988), (40, 52047494), (80, 26023747), (397, 5244080), (794, 2622040), (1588, 1311020), (1985, 1048816), (3176, 655510), (3970, 524408), (6352, 327755), (7940, 262204), (15880, 131102), (31760, 65551)]