20101812

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 48491520

約数和(自身を除く): 28389708

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 163, 172, 239, 258, 326, 478, 489, 516, 652, 717, 956, 978, 1434, 1956, 2868, 7009, 10277, 14018, 20554, 21027, 28036, 30831, 38957, 41108, 42054, 61662, 77914, 84108, 116871, 123324, 155828, 233742, 467484, 1675151, 3350302, 5025453, 6700604, 10050906, 20101812]

約数ペア:

[(1, 20101812), (2, 10050906), (3, 6700604), (4, 5025453), (6, 3350302), (12, 1675151), (43, 467484), (86, 233742), (129, 155828), (163, 123324), (172, 116871), (239, 84108), (258, 77914), (326, 61662), (478, 42054), (489, 41108), (516, 38957), (652, 30831), (717, 28036), (956, 21027), (978, 20554), (1434, 14018), (1956, 10277), (2868, 7009)]