16082920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:898

約数の個数: 64

約数和(自身を含む): 41990400

約数和(自身を除く): 25907480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 809, 994, 1420, 1618, 1988, 2485, 2840, 3236, 3976, 4045, 4970, 5663, 6472, 8090, 9940, 11326, 16180, 19880, 22652, 28315, 32360, 45304, 56630, 57439, 113260, 114878, 226520, 229756, 287195, 402073, 459512, 574390, 804146, 1148780, 1608292, 2010365, 2297560, 3216584, 4020730, 8041460, 16082920]

約数ペア:

[(1, 16082920), (2, 8041460), (4, 4020730), (5, 3216584), (7, 2297560), (8, 2010365), (10, 1608292), (14, 1148780), (20, 804146), (28, 574390), (35, 459512), (40, 402073), (56, 287195), (70, 229756), (71, 226520), (140, 114878), (142, 113260), (280, 57439), (284, 56630), (355, 45304), (497, 32360), (568, 28315), (710, 22652), (809, 19880), (994, 16180), (1420, 11326), (1618, 9940), (1988, 8090), (2485, 6472), (2840, 5663), (3236, 4970), (3976, 4045)]