20650708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 19991852

約数列:

[1, 2, 4, 13, 26, 52, 53, 59, 106, 118, 127, 212, 236, 254, 508, 689, 767, 1378, 1534, 1651, 2756, 3068, 3127, 3302, 6254, 6604, 6731, 7493, 12508, 13462, 14986, 26924, 29972, 40651, 81302, 87503, 97409, 162604, 175006, 194818, 350012, 389636, 397129, 794258, 1588516, 5162677, 10325354, 20650708]

約数ペア:

[(1, 20650708), (2, 10325354), (4, 5162677), (13, 1588516), (26, 794258), (52, 397129), (53, 389636), (59, 350012), (106, 194818), (118, 175006), (127, 162604), (212, 97409), (236, 87503), (254, 81302), (508, 40651), (689, 29972), (767, 26924), (1378, 14986), (1534, 13462), (1651, 12508), (2756, 7493), (3068, 6731), (3127, 6604), (3302, 6254)]