20664780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18127}}^1$

素因数の和:18158

約数の個数: 48

約数和(自身を含む): 60910080

約数和(自身を除く): 40245300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18127, 36254, 54381, 72508, 90635, 108762, 181270, 217524, 271905, 344413, 362540, 543810, 688826, 1033239, 1087620, 1377652, 1722065, 2066478, 3444130, 4132956, 5166195, 6888260, 10332390, 20664780]

約数ペア:

[(1, 20664780), (2, 10332390), (3, 6888260), (4, 5166195), (5, 4132956), (6, 3444130), (10, 2066478), (12, 1722065), (15, 1377652), (19, 1087620), (20, 1033239), (30, 688826), (38, 543810), (57, 362540), (60, 344413), (76, 271905), (95, 217524), (114, 181270), (190, 108762), (228, 90635), (285, 72508), (380, 54381), (570, 36254), (1140, 18127)]