1990459005

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{20287}}^1$

素因数の和:20537

約数の個数: 32

約数和(自身を含む): 3303211008

約数和(自身を除く): 1312752003

約数列:

[1, 3, 5, 15, 31, 93, 155, 211, 465, 633, 1055, 3165, 6541, 19623, 20287, 32705, 60861, 98115, 101435, 304305, 628897, 1886691, 3144485, 4280557, 9433455, 12841671, 21402785, 64208355, 132697267, 398091801, 663486335, 1990459005]

約数ペア:

[(1, 1990459005), (3, 663486335), (5, 398091801), (15, 132697267), (31, 64208355), (93, 21402785), (155, 12841671), (211, 9433455), (465, 4280557), (633, 3144485), (1055, 1886691), (3165, 628897), (6541, 304305), (19623, 101435), (20287, 98115), (32705, 60861)]