18685810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 40279680

約数和(自身を除く): 21593870

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 73, 110, 130, 143, 146, 179, 286, 358, 365, 715, 730, 803, 895, 949, 1430, 1606, 1790, 1898, 1969, 2327, 3938, 4015, 4654, 4745, 8030, 9490, 9845, 10439, 11635, 13067, 19690, 20878, 23270, 25597, 26134, 51194, 52195, 65335, 104390, 127985, 130670, 143737, 169871, 255970, 287474, 339742, 718685, 849355, 1437370, 1698710, 1868581, 3737162, 9342905, 18685810]

約数ペア:

[(1, 18685810), (2, 9342905), (5, 3737162), (10, 1868581), (11, 1698710), (13, 1437370), (22, 849355), (26, 718685), (55, 339742), (65, 287474), (73, 255970), (110, 169871), (130, 143737), (143, 130670), (146, 127985), (179, 104390), (286, 65335), (358, 52195), (365, 51194), (715, 26134), (730, 25597), (803, 23270), (895, 20878), (949, 19690), (1430, 13067), (1606, 11635), (1790, 10439), (1898, 9845), (1969, 9490), (2327, 8030), (3938, 4745), (4015, 4654)]