20734252

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 47113920

約数和(自身を除く): 26379668

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 59, 77, 98, 118, 154, 163, 196, 236, 308, 326, 413, 539, 649, 652, 826, 1078, 1141, 1298, 1652, 1793, 2156, 2282, 2596, 2891, 3586, 4543, 4564, 5782, 7172, 7987, 9086, 9617, 11564, 12551, 15974, 18172, 19234, 25102, 31801, 31948, 38468, 50204, 63602, 67319, 87857, 105787, 127204, 134638, 175714, 211574, 269276, 351428, 423148, 471233, 740509, 942466, 1481018, 1884932, 2962036, 5183563, 10367126, 20734252]

約数ペア:

[(1, 20734252), (2, 10367126), (4, 5183563), (7, 2962036), (11, 1884932), (14, 1481018), (22, 942466), (28, 740509), (44, 471233), (49, 423148), (59, 351428), (77, 269276), (98, 211574), (118, 175714), (154, 134638), (163, 127204), (196, 105787), (236, 87857), (308, 67319), (326, 63602), (413, 50204), (539, 38468), (649, 31948), (652, 31801), (826, 25102), (1078, 19234), (1141, 18172), (1298, 15974), (1652, 12551), (1793, 11564), (2156, 9617), (2282, 9086), (2596, 7987), (2891, 7172), (3586, 5782), (4543, 4564)]