20478696

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1543}}^1$

素因数の和:1638

約数の個数: 64

約数和(自身を含む): 59289600

約数和(自身を除く): 38810904

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 79, 84, 158, 168, 237, 316, 474, 553, 632, 948, 1106, 1543, 1659, 1896, 2212, 3086, 3318, 4424, 4629, 6172, 6636, 9258, 10801, 12344, 13272, 18516, 21602, 32403, 37032, 43204, 64806, 86408, 121897, 129612, 243794, 259224, 365691, 487588, 731382, 853279, 975176, 1462764, 1706558, 2559837, 2925528, 3413116, 5119674, 6826232, 10239348, 20478696]

約数ペア:

[(1, 20478696), (2, 10239348), (3, 6826232), (4, 5119674), (6, 3413116), (7, 2925528), (8, 2559837), (12, 1706558), (14, 1462764), (21, 975176), (24, 853279), (28, 731382), (42, 487588), (56, 365691), (79, 259224), (84, 243794), (158, 129612), (168, 121897), (237, 86408), (316, 64806), (474, 43204), (553, 37032), (632, 32403), (948, 21602), (1106, 18516), (1543, 13272), (1659, 12344), (1896, 10801), (2212, 9258), (3086, 6636), (3318, 6172), (4424, 4629)]