2149789640

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{647527}}^1$

素因数の和:647621

約数の個数: 32

約数和(自身を含む): 4895311680

約数和(自身を除く): 2745522040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 647527, 1295054, 2590108, 3237635, 5180216, 6475270, 12950540, 25901080, 53744741, 107489482, 214978964, 268723705, 429957928, 537447410, 1074894820, 2149789640]

約数ペア:

[(1, 2149789640), (2, 1074894820), (4, 537447410), (5, 429957928), (8, 268723705), (10, 214978964), (20, 107489482), (40, 53744741), (83, 25901080), (166, 12950540), (332, 6475270), (415, 5180216), (664, 3237635), (830, 2590108), (1660, 1295054), (3320, 647527)]