21715440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90481}}^1$

素因数の和:90497

約数の個数: 40

約数和(自身を含む): 67318608

約数和(自身を除く): 45603168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90481, 180962, 271443, 361924, 452405, 542886, 723848, 904810, 1085772, 1357215, 1447696, 1809620, 2171544, 2714430, 3619240, 4343088, 5428860, 7238480, 10857720, 21715440]

約数ペア:

[(1, 21715440), (2, 10857720), (3, 7238480), (4, 5428860), (5, 4343088), (6, 3619240), (8, 2714430), (10, 2171544), (12, 1809620), (15, 1447696), (16, 1357215), (20, 1085772), (24, 904810), (30, 723848), (40, 542886), (48, 452405), (60, 361924), (80, 271443), (120, 180962), (240, 90481)]