1257759568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{318259}}^1$

素因数の和:318299

約数の個数: 40

約数和(自身を含む): 2762496800

約数和(自身を除く): 1504737232

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 318259, 636518, 1273036, 2546072, 4137367, 5092144, 6046921, 8274734, 12093842, 16549468, 24187684, 33098936, 48375368, 66197872, 78609973, 96750736, 157219946, 314439892, 628879784, 1257759568]

約数ペア:

[(1, 1257759568), (2, 628879784), (4, 314439892), (8, 157219946), (13, 96750736), (16, 78609973), (19, 66197872), (26, 48375368), (38, 33098936), (52, 24187684), (76, 16549468), (104, 12093842), (152, 8274734), (208, 6046921), (247, 5092144), (304, 4137367), (494, 2546072), (988, 1273036), (1976, 636518), (3952, 318259)]