18061840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7283}}^1$

素因数の和:7327

約数の個数: 40

約数和(自身を含む): 43354368

約数和(自身を除く): 25292528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7283, 14566, 29132, 36415, 58264, 72830, 116528, 145660, 225773, 291320, 451546, 582640, 903092, 1128865, 1806184, 2257730, 3612368, 4515460, 9030920, 18061840]

約数ペア:

[(1, 18061840), (2, 9030920), (4, 4515460), (5, 3612368), (8, 2257730), (10, 1806184), (16, 1128865), (20, 903092), (31, 582640), (40, 451546), (62, 291320), (80, 225773), (124, 145660), (155, 116528), (248, 72830), (310, 58264), (496, 36415), (620, 29132), (1240, 14566), (2480, 7283)]