20187193778

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{409}}^1\times {\mathrm{1861}}^1$

素因数の和:2510

約数の個数: 32

約数和(自身を含む): 30918510000

約数和(自身を除く): 10731316222

約数列:

[1, 2, 89, 149, 178, 298, 409, 818, 1861, 3722, 13261, 26522, 36401, 60941, 72802, 121882, 165629, 277289, 331258, 554578, 761149, 1522298, 5423749, 10847498, 24678721, 49357442, 67742261, 113411201, 135484522, 226822402, 10093596889, 20187193778]

約数ペア:

[(1, 20187193778), (2, 10093596889), (89, 226822402), (149, 135484522), (178, 113411201), (298, 67742261), (409, 49357442), (818, 24678721), (1861, 10847498), (3722, 5423749), (13261, 1522298), (26522, 761149), (36401, 554578), (60941, 331258), (72802, 277289), (121882, 165629)]