20564040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24481}}^1$

素因数の和:24502

約数の個数: 64

約数和(自身を含む): 70508160

約数和(自身を除く): 49944120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24481, 48962, 73443, 97924, 122405, 146886, 171367, 195848, 244810, 293772, 342734, 367215, 489620, 514101, 587544, 685468, 734430, 856835, 979240, 1028202, 1370936, 1468860, 1713670, 2056404, 2570505, 2937720, 3427340, 4112808, 5141010, 6854680, 10282020, 20564040]

約数ペア:

[(1, 20564040), (2, 10282020), (3, 6854680), (4, 5141010), (5, 4112808), (6, 3427340), (7, 2937720), (8, 2570505), (10, 2056404), (12, 1713670), (14, 1468860), (15, 1370936), (20, 1028202), (21, 979240), (24, 856835), (28, 734430), (30, 685468), (35, 587544), (40, 514101), (42, 489620), (56, 367215), (60, 342734), (70, 293772), (84, 244810), (105, 195848), (120, 171367), (140, 146886), (168, 122405), (210, 97924), (280, 73443), (420, 48962), (840, 24481)]