20351664

素因数分解:

$2^4\times 3^2\times {\mathrm{79}}^1\times {\mathrm{1789}}^1$

素因数の和:1882

約数の個数: 60

約数和(自身を含む): 57709600

約数和(自身を除く): 37357936

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 79, 144, 158, 237, 316, 474, 632, 711, 948, 1264, 1422, 1789, 1896, 2844, 3578, 3792, 5367, 5688, 7156, 10734, 11376, 14312, 16101, 21468, 28624, 32202, 42936, 64404, 85872, 128808, 141331, 257616, 282662, 423993, 565324, 847986, 1130648, 1271979, 1695972, 2261296, 2543958, 3391944, 5087916, 6783888, 10175832, 20351664]

約数ペア:

[(1, 20351664), (2, 10175832), (3, 6783888), (4, 5087916), (6, 3391944), (8, 2543958), (9, 2261296), (12, 1695972), (16, 1271979), (18, 1130648), (24, 847986), (36, 565324), (48, 423993), (72, 282662), (79, 257616), (144, 141331), (158, 128808), (237, 85872), (316, 64404), (474, 42936), (632, 32202), (711, 28624), (948, 21468), (1264, 16101), (1422, 14312), (1789, 11376), (1896, 10734), (2844, 7156), (3578, 5688), (3792, 5367)]