78889232120

素因数分解:

$2^3\times 5^1\times {\mathrm{302443}}^1\times {\mathrm{6521}}^1$

素因数の和:308975

約数の個数: 32

約数和(自身を含む): 177528579120

約数和(自身を除く): 98639347000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6521, 13042, 26084, 32605, 52168, 65210, 130420, 260840, 302443, 604886, 1209772, 1512215, 2419544, 3024430, 6048860, 12097720, 1972230803, 3944461606, 7888923212, 9861154015, 15777846424, 19722308030, 39444616060, 78889232120]

約数ペア:

[(1, 78889232120), (2, 39444616060), (4, 19722308030), (5, 15777846424), (8, 9861154015), (10, 7888923212), (20, 3944461606), (40, 1972230803), (6521, 12097720), (13042, 6048860), (26084, 3024430), (32605, 2419544), (52168, 1512215), (65210, 1209772), (130420, 604886), (260840, 302443)]