90820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:267

約数の個数: 24

約数和(自身を含む): 201600

約数和(自身を除く): 110780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 239, 380, 478, 956, 1195, 2390, 4541, 4780, 9082, 18164, 22705, 45410, 90820]

約数ペア:

[(1, 90820), (2, 45410), (4, 22705), (5, 18164), (10, 9082), (19, 4780), (20, 4541), (38, 2390), (76, 1195), (95, 956), (190, 478), (239, 380)]