164433980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{432721}}^1$

素因数の和:432749

約数の個数: 24

約数和(自身を含む): 363486480

約数和(自身を除く): 199052500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 432721, 865442, 1730884, 2163605, 4327210, 8221699, 8654420, 16443398, 32886796, 41108495, 82216990, 164433980]

約数ペア:

[(1, 164433980), (2, 82216990), (4, 41108495), (5, 32886796), (10, 16443398), (19, 8654420), (20, 8221699), (38, 4327210), (76, 2163605), (95, 1730884), (190, 865442), (380, 432721)]