128404318

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{2003}}^1$

素因数の和:2272

約数の個数: 32

約数和(自身を含む): 232784640

約数和(自身を除く): 104380322

約数列:

[1, 2, 7, 14, 19, 38, 133, 241, 266, 482, 1687, 2003, 3374, 4006, 4579, 9158, 14021, 28042, 32053, 38057, 64106, 76114, 266399, 482723, 532798, 965446, 3379061, 6758122, 9171737, 18343474, 64202159, 128404318]

約数ペア:

[(1, 128404318), (2, 64202159), (7, 18343474), (14, 9171737), (19, 6758122), (38, 3379061), (133, 965446), (241, 532798), (266, 482723), (482, 266399), (1687, 76114), (2003, 64106), (3374, 38057), (4006, 32053), (4579, 28042), (9158, 14021)]