28040420

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13103}}^1$

素因数の和:13219

約数の個数: 24

約数和(自身を含む): 59439744

約数和(自身を除く): 31399324

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 13103, 26206, 52412, 65515, 131030, 262060, 1402021, 2804042, 5608084, 7010105, 14020210, 28040420]

約数ペア:

[(1, 28040420), (2, 14020210), (4, 7010105), (5, 5608084), (10, 2804042), (20, 1402021), (107, 262060), (214, 131030), (428, 65515), (535, 52412), (1070, 26206), (2140, 13103)]