280802960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113227}}^1$

素因数の和:113271

約数の個数: 40

約数和(自身を含む): 673933056

約数和(自身を除く): 393130096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 113227, 226454, 452908, 566135, 905816, 1132270, 1811632, 2264540, 3510037, 4529080, 7020074, 9058160, 14040148, 17550185, 28080296, 35100370, 56160592, 70200740, 140401480, 280802960]

約数ペア:

[(1, 280802960), (2, 140401480), (4, 70200740), (5, 56160592), (8, 35100370), (10, 28080296), (16, 17550185), (20, 14040148), (31, 9058160), (40, 7020074), (62, 4529080), (80, 3510037), (124, 2264540), (155, 1811632), (248, 1132270), (310, 905816), (496, 566135), (620, 452908), (1240, 226454), (2480, 113227)]