4280440

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{947}}^1$

素因数の和:1071

約数の個数: 32

約数和(自身を含む): 9726480

約数和(自身を除く): 5446040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 947, 1130, 1894, 2260, 3788, 4520, 4735, 7576, 9470, 18940, 37880, 107011, 214022, 428044, 535055, 856088, 1070110, 2140220, 4280440]

約数ペア:

[(1, 4280440), (2, 2140220), (4, 1070110), (5, 856088), (8, 535055), (10, 428044), (20, 214022), (40, 107011), (113, 37880), (226, 18940), (452, 9470), (565, 7576), (904, 4735), (947, 4520), (1130, 3788), (1894, 2260)]