21681480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{180679}}^1$

素因数の和:180693

約数の個数: 32

約数和(自身を含む): 65044800

約数和(自身を除く): 43363320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 180679, 361358, 542037, 722716, 903395, 1084074, 1445432, 1806790, 2168148, 2710185, 3613580, 4336296, 5420370, 7227160, 10840740, 21681480]

約数ペア:

[(1, 21681480), (2, 10840740), (3, 7227160), (4, 5420370), (5, 4336296), (6, 3613580), (8, 2710185), (10, 2168148), (12, 1806790), (15, 1445432), (20, 1084074), (24, 903395), (30, 722716), (40, 542037), (60, 361358), (120, 180679)]