1231868980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{470179}}^1$

素因数の和:470319

約数の個数: 24

約数和(自身を含む): 2606677920

約数和(自身を除く): 1374808940

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 470179, 940358, 1880716, 2350895, 4701790, 9403580, 61593449, 123186898, 246373796, 307967245, 615934490, 1231868980]

約数ペア:

[(1, 1231868980), (2, 615934490), (4, 307967245), (5, 246373796), (10, 123186898), (20, 61593449), (131, 9403580), (262, 4701790), (524, 2350895), (655, 1880716), (1310, 940358), (2620, 470179)]