12931720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{2861}}^1$

素因数の和:2985

約数の個数: 32

約数和(自身を含む): 29364120

約数和(自身を除く): 16432400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 2861, 4520, 5722, 11444, 14305, 22888, 28610, 57220, 114440, 323293, 646586, 1293172, 1616465, 2586344, 3232930, 6465860, 12931720]

約数ペア:

[(1, 12931720), (2, 6465860), (4, 3232930), (5, 2586344), (8, 1616465), (10, 1293172), (20, 646586), (40, 323293), (113, 114440), (226, 57220), (452, 28610), (565, 22888), (904, 14305), (1130, 11444), (2260, 5722), (2861, 4520)]