198590960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{80077}}^1$

素因数の和:80121

約数の個数: 40

約数和(自身を含む): 476624256

約数和(自身を除く): 278033296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 80077, 160154, 320308, 400385, 640616, 800770, 1281232, 1601540, 2482387, 3203080, 4964774, 6406160, 9929548, 12411935, 19859096, 24823870, 39718192, 49647740, 99295480, 198590960]

約数ペア:

[(1, 198590960), (2, 99295480), (4, 49647740), (5, 39718192), (8, 24823870), (10, 19859096), (16, 12411935), (20, 9929548), (31, 6406160), (40, 4964774), (62, 3203080), (80, 2482387), (124, 1601540), (155, 1281232), (248, 800770), (310, 640616), (496, 400385), (620, 320308), (1240, 160154), (2480, 80077)]