2181554440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4195297}}^1$

素因数の和:4195321

約数の個数: 32

約数和(自身を含む): 5286075480

約数和(自身を除く): 3104521040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 4195297, 8390594, 16781188, 20976485, 33562376, 41952970, 54538861, 83905940, 109077722, 167811880, 218155444, 272694305, 436310888, 545388610, 1090777220, 2181554440]

約数ペア:

[(1, 2181554440), (2, 1090777220), (4, 545388610), (5, 436310888), (8, 272694305), (10, 218155444), (13, 167811880), (20, 109077722), (26, 83905940), (40, 54538861), (52, 41952970), (65, 33562376), (104, 20976485), (130, 16781188), (260, 8390594), (520, 4195297)]