12881362940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{883}}^1\times {\mathrm{16963}}^1$

素因数の和:17898

約数の個数: 48

約数和(自身を含む): 27712933248

約数和(自身を除く): 14831570308

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 883, 1766, 3532, 4415, 8830, 16963, 17660, 33926, 37969, 67852, 75938, 84815, 151876, 169630, 189845, 339260, 379690, 729409, 759380, 1458818, 2917636, 3647045, 7294090, 14588180, 14978329, 29956658, 59913316, 74891645, 149783290, 299566580, 644068147, 1288136294, 2576272588, 3220340735, 6440681470, 12881362940]

約数ペア:

[(1, 12881362940), (2, 6440681470), (4, 3220340735), (5, 2576272588), (10, 1288136294), (20, 644068147), (43, 299566580), (86, 149783290), (172, 74891645), (215, 59913316), (430, 29956658), (860, 14978329), (883, 14588180), (1766, 7294090), (3532, 3647045), (4415, 2917636), (8830, 1458818), (16963, 759380), (17660, 729409), (33926, 379690), (37969, 339260), (67852, 189845), (75938, 169630), (84815, 151876)]