156800840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2179}}^1$

素因数の和:2454

約数の個数: 64

約数和(自身を含む): 404956800

約数和(自身を除く): 248155960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 1028, 1285, 1799, 2056, 2179, 2570, 3598, 4358, 5140, 7196, 8716, 8995, 10280, 10895, 14392, 15253, 17432, 17990, 21790, 30506, 35980, 43580, 61012, 71960, 76265, 87160, 122024, 152530, 305060, 560003, 610120, 1120006, 2240012, 2800015, 3920021, 4480024, 5600030, 7840042, 11200060, 15680084, 19600105, 22400120, 31360168, 39200210, 78400420, 156800840]

約数ペア:

[(1, 156800840), (2, 78400420), (4, 39200210), (5, 31360168), (7, 22400120), (8, 19600105), (10, 15680084), (14, 11200060), (20, 7840042), (28, 5600030), (35, 4480024), (40, 3920021), (56, 2800015), (70, 2240012), (140, 1120006), (257, 610120), (280, 560003), (514, 305060), (1028, 152530), (1285, 122024), (1799, 87160), (2056, 76265), (2179, 71960), (2570, 61012), (3598, 43580), (4358, 35980), (5140, 30506), (7196, 21790), (8716, 17990), (8995, 17432), (10280, 15253), (10895, 14392)]