664120280

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{73141}}^1$

素因数の和:73379

約数の個数: 32

約数和(自身を含む): 1500873840

約数和(自身を除く): 836753560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 9080, 73141, 146282, 292564, 365705, 585128, 731410, 1462820, 2925640, 16603007, 33206014, 66412028, 83015035, 132824056, 166030070, 332060140, 664120280]

約数ペア:

[(1, 664120280), (2, 332060140), (4, 166030070), (5, 132824056), (8, 83015035), (10, 66412028), (20, 33206014), (40, 16603007), (227, 2925640), (454, 1462820), (908, 731410), (1135, 585128), (1816, 365705), (2270, 292564), (4540, 146282), (9080, 73141)]