19922680

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2879}}^1$

素因数の和:3063

約数の個数: 32

約数和(自身を含む): 45100800

約数和(自身を除く): 25178120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 2879, 3460, 5758, 6920, 11516, 14395, 23032, 28790, 57580, 115160, 498067, 996134, 1992268, 2490335, 3984536, 4980670, 9961340, 19922680]

約数ペア:

[(1, 19922680), (2, 9961340), (4, 4980670), (5, 3984536), (8, 2490335), (10, 1992268), (20, 996134), (40, 498067), (173, 115160), (346, 57580), (692, 28790), (865, 23032), (1384, 14395), (1730, 11516), (2879, 6920), (3460, 5758)]