138331340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{21023}}^1$

素因数の和:21086

約数の個数: 48

約数和(自身を含む): 339075072

約数和(自身を除く): 200743732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 21023, 42046, 84092, 105115, 147161, 210230, 294322, 420460, 588644, 735805, 988081, 1471610, 1976162, 2943220, 3952324, 4940405, 6916567, 9880810, 13833134, 19761620, 27666268, 34582835, 69165670, 138331340]

約数ペア:

[(1, 138331340), (2, 69165670), (4, 34582835), (5, 27666268), (7, 19761620), (10, 13833134), (14, 9880810), (20, 6916567), (28, 4940405), (35, 3952324), (47, 2943220), (70, 1976162), (94, 1471610), (140, 988081), (188, 735805), (235, 588644), (329, 420460), (470, 294322), (658, 210230), (940, 147161), (1316, 105115), (1645, 84092), (3290, 42046), (6580, 21023)]