68490160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{27617}}^1$

素因数の和:27661

約数の個数: 40

約数和(自身を含む): 164382336

約数和(自身を除く): 95892176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 27617, 55234, 110468, 138085, 220936, 276170, 441872, 552340, 856127, 1104680, 1712254, 2209360, 3424508, 4280635, 6849016, 8561270, 13698032, 17122540, 34245080, 68490160]

約数ペア:

[(1, 68490160), (2, 34245080), (4, 17122540), (5, 13698032), (8, 8561270), (10, 6849016), (16, 4280635), (20, 3424508), (31, 2209360), (40, 1712254), (62, 1104680), (80, 856127), (124, 552340), (155, 441872), (248, 276170), (310, 220936), (496, 138085), (620, 110468), (1240, 55234), (2480, 27617)]