20163883760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13265713}}^1$

素因数の和:13265745

約数の個数: 40

約数和(自身を含む): 49348456080

約数和(自身を除く): 29184572320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13265713, 26531426, 53062852, 66328565, 106125704, 132657130, 212251408, 252048547, 265314260, 504097094, 530628520, 1008194188, 1061257040, 1260242735, 2016388376, 2520485470, 4032776752, 5040970940, 10081941880, 20163883760]

約数ペア:

[(1, 20163883760), (2, 10081941880), (4, 5040970940), (5, 4032776752), (8, 2520485470), (10, 2016388376), (16, 1260242735), (19, 1061257040), (20, 1008194188), (38, 530628520), (40, 504097094), (76, 265314260), (80, 252048547), (95, 212251408), (152, 132657130), (190, 106125704), (304, 66328565), (380, 53062852), (760, 26531426), (1520, 13265713)]