19666320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{81943}}^1$

素因数の和:81959

約数の個数: 40

約数和(自身を含む): 60966336

約数和(自身を除く): 41300016

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 81943, 163886, 245829, 327772, 409715, 491658, 655544, 819430, 983316, 1229145, 1311088, 1638860, 1966632, 2458290, 3277720, 3933264, 4916580, 6555440, 9833160, 19666320]

約数ペア:

[(1, 19666320), (2, 9833160), (3, 6555440), (4, 4916580), (5, 3933264), (6, 3277720), (8, 2458290), (10, 1966632), (12, 1638860), (15, 1311088), (16, 1229145), (20, 983316), (24, 819430), (30, 655544), (40, 491658), (48, 409715), (60, 327772), (80, 245829), (120, 163886), (240, 81943)]