20645988

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{241}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 54072480

約数和(自身を除く): 33426492

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 59, 66, 118, 121, 132, 177, 236, 241, 242, 354, 363, 482, 484, 649, 708, 723, 726, 964, 1298, 1446, 1452, 1947, 2596, 2651, 2892, 3894, 5302, 7139, 7788, 7953, 10604, 14219, 14278, 15906, 21417, 28438, 28556, 29161, 31812, 42657, 42834, 56876, 58322, 85314, 85668, 87483, 116644, 156409, 170628, 174966, 312818, 349932, 469227, 625636, 938454, 1720499, 1876908, 3440998, 5161497, 6881996, 10322994, 20645988]

約数ペア:

[(1, 20645988), (2, 10322994), (3, 6881996), (4, 5161497), (6, 3440998), (11, 1876908), (12, 1720499), (22, 938454), (33, 625636), (44, 469227), (59, 349932), (66, 312818), (118, 174966), (121, 170628), (132, 156409), (177, 116644), (236, 87483), (241, 85668), (242, 85314), (354, 58322), (363, 56876), (482, 42834), (484, 42657), (649, 31812), (708, 29161), (723, 28556), (726, 28438), (964, 21417), (1298, 15906), (1446, 14278), (1452, 14219), (1947, 10604), (2596, 7953), (2651, 7788), (2892, 7139), (3894, 5302)]