163900720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66089}}^1$

素因数の和:66133

約数の個数: 40

約数和(自身を含む): 393367680

約数和(自身を除く): 229466960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 66089, 132178, 264356, 330445, 528712, 660890, 1057424, 1321780, 2048759, 2643560, 4097518, 5287120, 8195036, 10243795, 16390072, 20487590, 32780144, 40975180, 81950360, 163900720]

約数ペア:

[(1, 163900720), (2, 81950360), (4, 40975180), (5, 32780144), (8, 20487590), (10, 16390072), (16, 10243795), (20, 8195036), (31, 5287120), (40, 4097518), (62, 2643560), (80, 2048759), (124, 1321780), (155, 1057424), (248, 660890), (310, 528712), (496, 330445), (620, 264356), (1240, 132178), (2480, 66089)]