9970820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1381}}^1$

素因数の和:1428

約数の個数: 36

約数和(自身を含む): 22114764

約数和(自身を除く): 12143944

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1381, 1444, 1805, 2762, 3610, 5524, 6905, 7220, 13810, 26239, 27620, 52478, 104956, 131195, 262390, 498541, 524780, 997082, 1994164, 2492705, 4985410, 9970820]

約数ペア:

[(1, 9970820), (2, 4985410), (4, 2492705), (5, 1994164), (10, 997082), (19, 524780), (20, 498541), (38, 262390), (76, 131195), (95, 104956), (190, 52478), (361, 27620), (380, 26239), (722, 13810), (1381, 7220), (1444, 6905), (1805, 5524), (2762, 3610)]