20930120

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1889}}^1$

素因数の和:2177

約数の個数: 32

約数和(自身を含む): 47287800

約数和(自身を除く): 26357680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 1889, 2216, 2770, 3778, 5540, 7556, 9445, 11080, 15112, 18890, 37780, 75560, 523253, 1046506, 2093012, 2616265, 4186024, 5232530, 10465060, 20930120]

約数ペア:

[(1, 20930120), (2, 10465060), (4, 5232530), (5, 4186024), (8, 2616265), (10, 2093012), (20, 1046506), (40, 523253), (277, 75560), (554, 37780), (1108, 18890), (1385, 15112), (1889, 11080), (2216, 9445), (2770, 7556), (3778, 5540)]