205661520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{285641}}^1$

素因数の和:285660

約数の個数: 60

約数和(自身を含む): 690682356

約数和(自身を除く): 485020836

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 285641, 571282, 856923, 1142564, 1428205, 1713846, 2285128, 2570769, 2856410, 3427692, 4284615, 4570256, 5141538, 5712820, 6855384, 8569230, 10283076, 11425640, 12853845, 13710768, 17138460, 20566152, 22851280, 25707690, 34276920, 41132304, 51415380, 68553840, 102830760, 205661520]

約数ペア:

[(1, 205661520), (2, 102830760), (3, 68553840), (4, 51415380), (5, 41132304), (6, 34276920), (8, 25707690), (9, 22851280), (10, 20566152), (12, 17138460), (15, 13710768), (16, 12853845), (18, 11425640), (20, 10283076), (24, 8569230), (30, 6855384), (36, 5712820), (40, 5141538), (45, 4570256), (48, 4284615), (60, 3427692), (72, 2856410), (80, 2570769), (90, 2285128), (120, 1713846), (144, 1428205), (180, 1142564), (240, 856923), (360, 571282), (720, 285641)]