20085164

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 20557396

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 89, 92, 178, 223, 253, 356, 446, 506, 892, 979, 1012, 1958, 2047, 2453, 3916, 4094, 4906, 5129, 8188, 9812, 10258, 19847, 20516, 22517, 39694, 45034, 56419, 79388, 90068, 112838, 218317, 225676, 436634, 456481, 873268, 912962, 1825924, 5021291, 10042582, 20085164]

約数ペア:

[(1, 20085164), (2, 10042582), (4, 5021291), (11, 1825924), (22, 912962), (23, 873268), (44, 456481), (46, 436634), (89, 225676), (92, 218317), (178, 112838), (223, 90068), (253, 79388), (356, 56419), (446, 45034), (506, 39694), (892, 22517), (979, 20516), (1012, 19847), (1958, 10258), (2047, 9812), (2453, 8188), (3916, 5129), (4094, 4906)]