18497440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8893}}^1$

素因数の和:8921

約数の個数: 48

約数和(自身を含む): 47067048

約数和(自身を除く): 28569608

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, 8893, 17786, 35572, 44465, 71144, 88930, 115609, 142288, 177860, 231218, 284576, 355720, 462436, 578045, 711440, 924872, 1156090, 1422880, 1849744, 2312180, 3699488, 4624360, 9248720, 18497440]

約数ペア:

[(1, 18497440), (2, 9248720), (4, 4624360), (5, 3699488), (8, 2312180), (10, 1849744), (13, 1422880), (16, 1156090), (20, 924872), (26, 711440), (32, 578045), (40, 462436), (52, 355720), (65, 284576), (80, 231218), (104, 177860), (130, 142288), (160, 115609), (208, 88930), (260, 71144), (416, 44465), (520, 35572), (1040, 17786), (2080, 8893)]