81278220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1354637}}^1$

素因数の和:1354649

約数の個数: 24

約数和(自身を含む): 227579184

約数和(自身を除く): 146300964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1354637, 2709274, 4063911, 5418548, 6773185, 8127822, 13546370, 16255644, 20319555, 27092740, 40639110, 81278220]

約数ペア:

[(1, 81278220), (2, 40639110), (3, 27092740), (4, 20319555), (5, 16255644), (6, 13546370), (10, 8127822), (12, 6773185), (15, 5418548), (20, 4063911), (30, 2709274), (60, 1354637)]