620871255

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{445069}}^1$

素因数の和:445111

約数の個数: 24

約数和(自身を含む): 1110894720

約数和(自身を除く): 490023465

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 445069, 1335207, 2225345, 4005621, 6676035, 13797139, 20028105, 41391417, 68985695, 124174251, 206957085, 620871255]

約数ペア:

[(1, 620871255), (3, 206957085), (5, 124174251), (9, 68985695), (15, 41391417), (31, 20028105), (45, 13797139), (93, 6676035), (155, 4005621), (279, 2225345), (465, 1335207), (1395, 445069)]