221507420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{270131}}^1$

素因数の和:270181

約数の個数: 24

約数和(自身を含む): 476512848

約数和(自身を除く): 255005428

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 270131, 540262, 1080524, 1350655, 2701310, 5402620, 11075371, 22150742, 44301484, 55376855, 110753710, 221507420]

約数ペア:

[(1, 221507420), (2, 110753710), (4, 55376855), (5, 44301484), (10, 22150742), (20, 11075371), (41, 5402620), (82, 2701310), (164, 1350655), (205, 1080524), (410, 540262), (820, 270131)]