199731760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{80537}}^1$

素因数の和:80581

約数の個数: 40

約数和(自身を含む): 479362176

約数和(自身を除く): 279630416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 80537, 161074, 322148, 402685, 644296, 805370, 1288592, 1610740, 2496647, 3221480, 4993294, 6442960, 9986588, 12483235, 19973176, 24966470, 39946352, 49932940, 99865880, 199731760]

約数ペア:

[(1, 199731760), (2, 99865880), (4, 49932940), (5, 39946352), (8, 24966470), (10, 19973176), (16, 12483235), (20, 9986588), (31, 6442960), (40, 4993294), (62, 3221480), (80, 2496647), (124, 1610740), (155, 1288592), (248, 805370), (310, 644296), (496, 402685), (620, 322148), (1240, 161074), (2480, 80537)]