978018620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1686239}}^1$

素因数の和:1686277

約数の個数: 24

約数和(自身を含む): 2124662400

約数和(自身を除く): 1146643780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 1686239, 3372478, 6744956, 8431195, 16862390, 33724780, 48900931, 97801862, 195603724, 244504655, 489009310, 978018620]

約数ペア:

[(1, 978018620), (2, 489009310), (4, 244504655), (5, 195603724), (10, 97801862), (20, 48900931), (29, 33724780), (58, 16862390), (116, 8431195), (145, 6744956), (290, 3372478), (580, 1686239)]