253657360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{288247}}^1$

素因数の和:288271

約数の個数: 40

約数和(自身を含む): 643369536

約数和(自身を除く): 389712176

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 288247, 576494, 1152988, 1441235, 2305976, 2882470, 3170717, 4611952, 5764940, 6341434, 11529880, 12682868, 15853585, 23059760, 25365736, 31707170, 50731472, 63414340, 126828680, 253657360]

約数ペア:

[(1, 253657360), (2, 126828680), (4, 63414340), (5, 50731472), (8, 31707170), (10, 25365736), (11, 23059760), (16, 15853585), (20, 12682868), (22, 11529880), (40, 6341434), (44, 5764940), (55, 4611952), (80, 3170717), (88, 2882470), (110, 2305976), (176, 1441235), (220, 1152988), (440, 576494), (880, 288247)]