20615208

素因数分解:

$2^3\times 3^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:302

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 32607192

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 79, 83, 131, 158, 166, 237, 249, 262, 316, 332, 393, 474, 498, 524, 632, 664, 786, 948, 996, 1048, 1572, 1896, 1992, 3144, 6557, 10349, 10873, 13114, 19671, 20698, 21746, 26228, 31047, 32619, 39342, 41396, 43492, 52456, 62094, 65238, 78684, 82792, 86984, 124188, 130476, 157368, 248376, 260952, 858967, 1717934, 2576901, 3435868, 5153802, 6871736, 10307604, 20615208]

約数ペア:

[(1, 20615208), (2, 10307604), (3, 6871736), (4, 5153802), (6, 3435868), (8, 2576901), (12, 1717934), (24, 858967), (79, 260952), (83, 248376), (131, 157368), (158, 130476), (166, 124188), (237, 86984), (249, 82792), (262, 78684), (316, 65238), (332, 62094), (393, 52456), (474, 43492), (498, 41396), (524, 39342), (632, 32619), (664, 31047), (786, 26228), (948, 21746), (996, 20698), (1048, 19671), (1572, 13114), (1896, 10873), (1992, 10349), (3144, 6557)]