5438420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1609}}^1$

素因数の和:1644

約数の個数: 36

約数和(自身を含む): 12374460

約数和(自身を除く): 6936040

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1609, 1690, 3218, 3380, 6436, 8045, 16090, 20917, 32180, 41834, 83668, 104585, 209170, 271921, 418340, 543842, 1087684, 1359605, 2719210, 5438420]

約数ペア:

[(1, 5438420), (2, 2719210), (4, 1359605), (5, 1087684), (10, 543842), (13, 418340), (20, 271921), (26, 209170), (52, 104585), (65, 83668), (130, 41834), (169, 32180), (260, 20917), (338, 16090), (676, 8045), (845, 6436), (1609, 3380), (1690, 3218)]