11112140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 25495680

約数和(自身を除く): 14383540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 541, 790, 1027, 1082, 1580, 2054, 2164, 2705, 4108, 5135, 5410, 7033, 10270, 10820, 14066, 20540, 28132, 35165, 42739, 70330, 85478, 140660, 170956, 213695, 427390, 555607, 854780, 1111214, 2222428, 2778035, 5556070, 11112140]

約数ペア:

[(1, 11112140), (2, 5556070), (4, 2778035), (5, 2222428), (10, 1111214), (13, 854780), (20, 555607), (26, 427390), (52, 213695), (65, 170956), (79, 140660), (130, 85478), (158, 70330), (260, 42739), (316, 35165), (395, 28132), (541, 20540), (790, 14066), (1027, 10820), (1082, 10270), (1580, 7033), (2054, 5410), (2164, 5135), (2705, 4108)]