18825680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7591}}^1$

素因数の和:7635

約数の個数: 40

約数和(自身を含む): 45187584

約数和(自身を除く): 26361904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7591, 15182, 30364, 37955, 60728, 75910, 121456, 151820, 235321, 303640, 470642, 607280, 941284, 1176605, 1882568, 2353210, 3765136, 4706420, 9412840, 18825680]

約数ペア:

[(1, 18825680), (2, 9412840), (4, 4706420), (5, 3765136), (8, 2353210), (10, 1882568), (16, 1176605), (20, 941284), (31, 607280), (40, 470642), (62, 303640), (80, 235321), (124, 151820), (155, 121456), (248, 75910), (310, 60728), (496, 37955), (620, 30364), (1240, 15182), (2480, 7591)]