20216740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{613}}^1$

素因数の和:736

約数の個数: 48

約数和(自身を含む): 45490032

約数和(自身を除く): 25273292

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 97, 170, 194, 340, 388, 485, 613, 970, 1226, 1649, 1940, 2452, 3065, 3298, 6130, 6596, 8245, 10421, 12260, 16490, 20842, 32980, 41684, 52105, 59461, 104210, 118922, 208420, 237844, 297305, 594610, 1010837, 1189220, 2021674, 4043348, 5054185, 10108370, 20216740]

約数ペア:

[(1, 20216740), (2, 10108370), (4, 5054185), (5, 4043348), (10, 2021674), (17, 1189220), (20, 1010837), (34, 594610), (68, 297305), (85, 237844), (97, 208420), (170, 118922), (194, 104210), (340, 59461), (388, 52105), (485, 41684), (613, 32980), (970, 20842), (1226, 16490), (1649, 12260), (1940, 10421), (2452, 8245), (3065, 6596), (3298, 6130)]