28720536490

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{70050089}}^1$

素因数の和:70050137

約数の個数: 16

約数和(自身を含む): 52957868040

約数和(自身を除く): 24237331550

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 70050089, 140100178, 350250445, 700500890, 2872053649, 5744107298, 14360268245, 28720536490]

約数ペア:

[(1, 28720536490), (2, 14360268245), (5, 5744107298), (10, 2872053649), (41, 700500890), (82, 350250445), (205, 140100178), (410, 70050089)]