20884570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 44925696

約数和(自身を除く): 24041126

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 67, 70, 73, 122, 134, 146, 305, 335, 365, 427, 469, 511, 610, 670, 730, 854, 938, 1022, 2135, 2345, 2555, 4087, 4270, 4453, 4690, 4891, 5110, 8174, 8906, 9782, 20435, 22265, 24455, 28609, 31171, 34237, 40870, 44530, 48910, 57218, 62342, 68474, 143045, 155855, 171185, 286090, 298351, 311710, 342370, 596702, 1491755, 2088457, 2983510, 4176914, 10442285, 20884570]

約数ペア:

[(1, 20884570), (2, 10442285), (5, 4176914), (7, 2983510), (10, 2088457), (14, 1491755), (35, 596702), (61, 342370), (67, 311710), (70, 298351), (73, 286090), (122, 171185), (134, 155855), (146, 143045), (305, 68474), (335, 62342), (365, 57218), (427, 48910), (469, 44530), (511, 40870), (610, 34237), (670, 31171), (730, 28609), (854, 24455), (938, 22265), (1022, 20435), (2135, 9782), (2345, 8906), (2555, 8174), (4087, 5110), (4270, 4891), (4453, 4690)]