217206210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{556939}}^1$

素因数の和:556962

約数の個数: 32

約数和(自身を含む): 561395520

約数和(自身を除く): 344189310

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 556939, 1113878, 1670817, 2784695, 3341634, 5569390, 7240207, 8354085, 14480414, 16708170, 21720621, 36201035, 43441242, 72402070, 108603105, 217206210]

約数ペア:

[(1, 217206210), (2, 108603105), (3, 72402070), (5, 43441242), (6, 36201035), (10, 21720621), (13, 16708170), (15, 14480414), (26, 8354085), (30, 7240207), (39, 5569390), (65, 3341634), (78, 2784695), (130, 1670817), (195, 1113878), (390, 556939)]