392952920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{228461}}^1$

素因数の和:228515

約数の個数: 32

約数和(自身を含む): 904709520

約数和(自身を除く): 511756600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 228461, 456922, 913844, 1142305, 1827688, 2284610, 4569220, 9138440, 9823823, 19647646, 39295292, 49119115, 78590584, 98238230, 196476460, 392952920]

約数ペア:

[(1, 392952920), (2, 196476460), (4, 98238230), (5, 78590584), (8, 49119115), (10, 39295292), (20, 19647646), (40, 9823823), (43, 9138440), (86, 4569220), (172, 2284610), (215, 1827688), (344, 1142305), (430, 913844), (860, 456922), (1720, 228461)]