18135440

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7817}}^1$

素因数の和:7859

約数の個数: 40

約数和(自身を含む): 43624440

約数和(自身を除く): 25489000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 7817, 15634, 31268, 39085, 62536, 78170, 125072, 156340, 226693, 312680, 453386, 625360, 906772, 1133465, 1813544, 2266930, 3627088, 4533860, 9067720, 18135440]

約数ペア:

[(1, 18135440), (2, 9067720), (4, 4533860), (5, 3627088), (8, 2266930), (10, 1813544), (16, 1133465), (20, 906772), (29, 625360), (40, 453386), (58, 312680), (80, 226693), (116, 156340), (145, 125072), (232, 78170), (290, 62536), (464, 39085), (580, 31268), (1160, 15634), (2320, 7817)]