1911182020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{79699}}^1$

素因数の和:79828

約数の個数: 48

約数和(自身を含む): 4418568000

約数和(自身を除く): 2507385980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 4796, 5995, 11990, 23980, 79699, 159398, 318796, 398495, 796990, 876689, 1593980, 1753378, 3506756, 4383445, 8687191, 8766890, 17374382, 17533780, 34748764, 43435955, 86871910, 95559101, 173743820, 191118202, 382236404, 477795505, 955591010, 1911182020]

約数ペア:

[(1, 1911182020), (2, 955591010), (4, 477795505), (5, 382236404), (10, 191118202), (11, 173743820), (20, 95559101), (22, 86871910), (44, 43435955), (55, 34748764), (109, 17533780), (110, 17374382), (218, 8766890), (220, 8687191), (436, 4383445), (545, 3506756), (1090, 1753378), (1199, 1593980), (2180, 876689), (2398, 796990), (4796, 398495), (5995, 318796), (11990, 159398), (23980, 79699)]