261990164

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{1013}}^1$

素因数の和:1160

約数の個数: 48

約数和(自身を含む): 500834880

約数和(自身を除く): 238844716

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 83, 164, 166, 332, 779, 1013, 1558, 1577, 2026, 3116, 3154, 3403, 4052, 6308, 6806, 13612, 19247, 38494, 41533, 64657, 76988, 83066, 84079, 129314, 166132, 168158, 258628, 336316, 789127, 1578254, 1597501, 3156508, 3195002, 3447239, 6390004, 6894478, 13788956, 65497541, 130995082, 261990164]

約数ペア:

[(1, 261990164), (2, 130995082), (4, 65497541), (19, 13788956), (38, 6894478), (41, 6390004), (76, 3447239), (82, 3195002), (83, 3156508), (164, 1597501), (166, 1578254), (332, 789127), (779, 336316), (1013, 258628), (1558, 168158), (1577, 166132), (2026, 129314), (3116, 84079), (3154, 83066), (3403, 76988), (4052, 64657), (6308, 41533), (6806, 38494), (13612, 19247)]