128634620

素因数分解:

$2^2\times 5^1\times {\mathrm{1531}}^1\times {\mathrm{4201}}^1$

素因数の和:5741

約数の個数: 24

約数和(自身を含む): 270373488

約数和(自身を除く): 141738868

約数列:

[1, 2, 4, 5, 10, 20, 1531, 3062, 4201, 6124, 7655, 8402, 15310, 16804, 21005, 30620, 42010, 84020, 6431731, 12863462, 25726924, 32158655, 64317310, 128634620]

約数ペア:

[(1, 128634620), (2, 64317310), (4, 32158655), (5, 25726924), (10, 12863462), (20, 6431731), (1531, 84020), (3062, 42010), (4201, 30620), (6124, 21005), (7655, 16804), (8402, 15310)]