18181920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{37879}}^1$

素因数の和:37897

約数の個数: 48

約数和(自身を含む): 57274560

約数和(自身を除く): 39092640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 37879, 75758, 113637, 151516, 189395, 227274, 303032, 378790, 454548, 568185, 606064, 757580, 909096, 1136370, 1212128, 1515160, 1818192, 2272740, 3030320, 3636384, 4545480, 6060640, 9090960, 18181920]

約数ペア:

[(1, 18181920), (2, 9090960), (3, 6060640), (4, 4545480), (5, 3636384), (6, 3030320), (8, 2272740), (10, 1818192), (12, 1515160), (15, 1212128), (16, 1136370), (20, 909096), (24, 757580), (30, 606064), (32, 568185), (40, 454548), (48, 378790), (60, 303032), (80, 227274), (96, 189395), (120, 151516), (160, 113637), (240, 75758), (480, 37879)]