243735640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{196561}}^1$

素因数の和:196603

約数の個数: 32

約数和(自身を含む): 566098560

約数和(自身を除く): 322362920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 196561, 393122, 786244, 982805, 1572488, 1965610, 3931220, 6093391, 7862440, 12186782, 24373564, 30466955, 48747128, 60933910, 121867820, 243735640]

約数ペア:

[(1, 243735640), (2, 121867820), (4, 60933910), (5, 48747128), (8, 30466955), (10, 24373564), (20, 12186782), (31, 7862440), (40, 6093391), (62, 3931220), (124, 1965610), (155, 1572488), (248, 982805), (310, 786244), (620, 393122), (1240, 196561)]