20470398

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 46654272

約数和(自身を除く): 26183874

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 41, 74, 78, 82, 111, 123, 173, 222, 246, 346, 481, 519, 533, 962, 1038, 1066, 1443, 1517, 1599, 2249, 2886, 3034, 3198, 4498, 4551, 6401, 6747, 7093, 9102, 12802, 13494, 14186, 19203, 19721, 21279, 38406, 39442, 42558, 59163, 83213, 92209, 118326, 166426, 184418, 249639, 262441, 276627, 499278, 524882, 553254, 787323, 1574646, 3411733, 6823466, 10235199, 20470398]

約数ペア:

[(1, 20470398), (2, 10235199), (3, 6823466), (6, 3411733), (13, 1574646), (26, 787323), (37, 553254), (39, 524882), (41, 499278), (74, 276627), (78, 262441), (82, 249639), (111, 184418), (123, 166426), (173, 118326), (222, 92209), (246, 83213), (346, 59163), (481, 42558), (519, 39442), (533, 38406), (962, 21279), (1038, 19721), (1066, 19203), (1443, 14186), (1517, 13494), (1599, 12802), (2249, 9102), (2886, 7093), (3034, 6747), (3198, 6401), (4498, 4551)]