278609214

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{115223}}^1$

素因数の和:115272

約数の個数: 32

約数和(自身を含む): 619444224

約数和(自身を除く): 340835010

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 115223, 230446, 345669, 691338, 1497899, 2995798, 3571913, 4493697, 7143826, 8987394, 10715739, 21431478, 46434869, 92869738, 139304607, 278609214]

約数ペア:

[(1, 278609214), (2, 139304607), (3, 92869738), (6, 46434869), (13, 21431478), (26, 10715739), (31, 8987394), (39, 7143826), (62, 4493697), (78, 3571913), (93, 2995798), (186, 1497899), (403, 691338), (806, 345669), (1209, 230446), (2418, 115223)]