18430880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8861}}^1$

素因数の和:8889

約数の個数: 48

約数和(自身を含む): 46897704

約数和(自身を除く): 28466824

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 8861, 17722, 35444, 44305, 70888, 88610, 115193, 141776, 177220, 230386, 283552, 354440, 460772, 575965, 708880, 921544, 1151930, 1417760, 1843088, 2303860, 3686176, 4607720, 9215440, 18430880]

約数ペア:

[(1, 18430880), (2, 9215440), (4, 4607720), (5, 3686176), (8, 2303860), (10, 1843088), (13, 1417760), (16, 1151930), (20, 921544), (26, 708880), (32, 575965), (40, 460772), (52, 354440), (65, 283552), (80, 230386), (104, 177220), (130, 141776), (160, 115193), (208, 88610), (260, 70888), (416, 44305), (520, 35444), (1040, 17722), (2080, 8861)]