38845820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2819}}^1$

素因数の和:2894

約数の個数: 48

約数和(自身を含む): 89540640

約数和(自身を除く): 50694820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 2819, 3445, 5638, 6890, 11276, 13780, 14095, 28190, 36647, 56380, 73294, 146588, 149407, 183235, 298814, 366470, 597628, 732940, 747035, 1494070, 1942291, 2988140, 3884582, 7769164, 9711455, 19422910, 38845820]

約数ペア:

[(1, 38845820), (2, 19422910), (4, 9711455), (5, 7769164), (10, 3884582), (13, 2988140), (20, 1942291), (26, 1494070), (52, 747035), (53, 732940), (65, 597628), (106, 366470), (130, 298814), (212, 183235), (260, 149407), (265, 146588), (530, 73294), (689, 56380), (1060, 36647), (1378, 28190), (2756, 14095), (2819, 13780), (3445, 11276), (5638, 6890)]