20292361880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{992777}}^1$

素因数の和:992868

約数の個数: 64

約数和(自身を含む): 52895211840

約数和(自身を除く): 32602849960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 10220, 20440, 992777, 1985554, 3971108, 4963885, 6949439, 7942216, 9927770, 13898878, 19855540, 27797756, 34747195, 39711080, 55595512, 69494390, 72472721, 138988780, 144945442, 277977560, 289890884, 362363605, 507309047, 579781768, 724727210, 1014618094, 1449454420, 2029236188, 2536545235, 2898908840, 4058472376, 5073090470, 10146180940, 20292361880]

約数ペア:

[(1, 20292361880), (2, 10146180940), (4, 5073090470), (5, 4058472376), (7, 2898908840), (8, 2536545235), (10, 2029236188), (14, 1449454420), (20, 1014618094), (28, 724727210), (35, 579781768), (40, 507309047), (56, 362363605), (70, 289890884), (73, 277977560), (140, 144945442), (146, 138988780), (280, 72472721), (292, 69494390), (365, 55595512), (511, 39711080), (584, 34747195), (730, 27797756), (1022, 19855540), (1460, 13898878), (2044, 9927770), (2555, 7942216), (2920, 6949439), (4088, 4963885), (5110, 3971108), (10220, 1985554), (20440, 992777)]