20189901560

素因数分解:

$2^3\times 5^1\times {\mathrm{2441}}^1\times {\mathrm{206779}}^1$

素因数の和:209231

約数の個数: 32

約数和(自身を含む): 45446108400

約数和(自身を除く): 25256206840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2441, 4882, 9764, 12205, 19528, 24410, 48820, 97640, 206779, 413558, 827116, 1033895, 1654232, 2067790, 4135580, 8271160, 504747539, 1009495078, 2018990156, 2523737695, 4037980312, 5047475390, 10094950780, 20189901560]

約数ペア:

[(1, 20189901560), (2, 10094950780), (4, 5047475390), (5, 4037980312), (8, 2523737695), (10, 2018990156), (20, 1009495078), (40, 504747539), (2441, 8271160), (4882, 4135580), (9764, 2067790), (12205, 1654232), (19528, 1033895), (24410, 827116), (48820, 413558), (97640, 206779)]