18857860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{134699}}^1$

素因数の和:134715

約数の個数: 24

約数和(自身を含む): 45259200

約数和(自身を除く): 26401340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 134699, 269398, 538796, 673495, 942893, 1346990, 1885786, 2693980, 3771572, 4714465, 9428930, 18857860]

約数ペア:

[(1, 18857860), (2, 9428930), (4, 4714465), (5, 3771572), (7, 2693980), (10, 1885786), (14, 1346990), (20, 942893), (28, 673495), (35, 538796), (70, 269398), (140, 134699)]