813020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 1905120

約数和(自身を除く): 1092100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 59, 65, 106, 118, 130, 212, 236, 260, 265, 295, 530, 590, 689, 767, 1060, 1180, 1378, 1534, 2756, 3068, 3127, 3445, 3835, 6254, 6890, 7670, 12508, 13780, 15340, 15635, 31270, 40651, 62540, 81302, 162604, 203255, 406510, 813020]

約数ペア:

[(1, 813020), (2, 406510), (4, 203255), (5, 162604), (10, 81302), (13, 62540), (20, 40651), (26, 31270), (52, 15635), (53, 15340), (59, 13780), (65, 12508), (106, 7670), (118, 6890), (130, 6254), (212, 3835), (236, 3445), (260, 3127), (265, 3068), (295, 2756), (530, 1534), (590, 1378), (689, 1180), (767, 1060)]