258160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{461}}^1$

素因数の和:481

約数の個数: 40

約数和(自身を含む): 687456

約数和(自身を除く): 429296

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 461, 560, 922, 1844, 2305, 3227, 3688, 4610, 6454, 7376, 9220, 12908, 16135, 18440, 25816, 32270, 36880, 51632, 64540, 129080, 258160]

約数ペア:

[(1, 258160), (2, 129080), (4, 64540), (5, 51632), (7, 36880), (8, 32270), (10, 25816), (14, 18440), (16, 16135), (20, 12908), (28, 9220), (35, 7376), (40, 6454), (56, 4610), (70, 3688), (80, 3227), (112, 2305), (140, 1844), (280, 922), (461, 560)]