315128530

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{4987}}^1$

素因数の和:5154

約数の個数: 32

約数和(自身を含む): 581800320

約数和(自身を除く): 266671790

約数列:

[1, 2, 5, 10, 71, 89, 142, 178, 355, 445, 710, 890, 4987, 6319, 9974, 12638, 24935, 31595, 49870, 63190, 354077, 443843, 708154, 887686, 1770385, 2219215, 3540770, 4438430, 31512853, 63025706, 157564265, 315128530]

約数ペア:

[(1, 315128530), (2, 157564265), (5, 63025706), (10, 31512853), (71, 4438430), (89, 3540770), (142, 2219215), (178, 1770385), (355, 887686), (445, 708154), (710, 443843), (890, 354077), (4987, 63190), (6319, 49870), (9974, 31595), (12638, 24935)]