258132560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{460951}}^1$

素因数の和:460971

約数の個数: 40

約数和(自身を含む): 685896576

約数和(自身を除く): 427764016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 460951, 921902, 1843804, 2304755, 3226657, 3687608, 4609510, 6453314, 7375216, 9219020, 12906628, 16133285, 18438040, 25813256, 32266570, 36876080, 51626512, 64533140, 129066280, 258132560]

約数ペア:

[(1, 258132560), (2, 129066280), (4, 64533140), (5, 51626512), (7, 36876080), (8, 32266570), (10, 25813256), (14, 18438040), (16, 16133285), (20, 12906628), (28, 9219020), (35, 7375216), (40, 6453314), (56, 4609510), (70, 3687608), (80, 3226657), (112, 2304755), (140, 1843804), (280, 921902), (560, 460951)]