20281569340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{266933}}^1$

素因数の和:267102

約数の個数: 48

約数和(自身を含む): 44396462880

約数和(自身を除く): 24114893540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 131, 145, 262, 290, 524, 580, 655, 1310, 2620, 3799, 7598, 15196, 18995, 37990, 75980, 266933, 533866, 1067732, 1334665, 2669330, 5338660, 7741057, 15482114, 30964228, 34968223, 38705285, 69936446, 77410570, 139872892, 154821140, 174841115, 349682230, 699364460, 1014078467, 2028156934, 4056313868, 5070392335, 10140784670, 20281569340]

約数ペア:

[(1, 20281569340), (2, 10140784670), (4, 5070392335), (5, 4056313868), (10, 2028156934), (20, 1014078467), (29, 699364460), (58, 349682230), (116, 174841115), (131, 154821140), (145, 139872892), (262, 77410570), (290, 69936446), (524, 38705285), (580, 34968223), (655, 30964228), (1310, 15482114), (2620, 7741057), (3799, 5338660), (7598, 2669330), (15196, 1334665), (18995, 1067732), (37990, 533866), (75980, 266933)]