71645780

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 154269696

約数和(自身を除く): 82623916

約数列:

[1, 2, 4, 5, 10, 20, 67, 127, 134, 254, 268, 335, 421, 508, 635, 670, 842, 1270, 1340, 1684, 2105, 2540, 4210, 8420, 8509, 17018, 28207, 34036, 42545, 53467, 56414, 85090, 106934, 112828, 141035, 170180, 213868, 267335, 282070, 534670, 564140, 1069340, 3582289, 7164578, 14329156, 17911445, 35822890, 71645780]

約数ペア:

[(1, 71645780), (2, 35822890), (4, 17911445), (5, 14329156), (10, 7164578), (20, 3582289), (67, 1069340), (127, 564140), (134, 534670), (254, 282070), (268, 267335), (335, 213868), (421, 170180), (508, 141035), (635, 112828), (670, 106934), (842, 85090), (1270, 56414), (1340, 53467), (1684, 42545), (2105, 34036), (2540, 28207), (4210, 17018), (8420, 8509)]