20499681255

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4021}}^1\times {\mathrm{4787}}^1$

素因数の和:8887

約数の個数: 32

約数和(自身を含む): 33276676608

約数和(自身を除く): 12776995353

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 4021, 4787, 12063, 14361, 20105, 23935, 60315, 71805, 285491, 339877, 856473, 1019631, 1427455, 1699385, 4282365, 5098155, 19248527, 57745581, 96242635, 288727905, 1366645417, 4099936251, 6833227085, 20499681255]

約数ペア:

[(1, 20499681255), (3, 6833227085), (5, 4099936251), (15, 1366645417), (71, 288727905), (213, 96242635), (355, 57745581), (1065, 19248527), (4021, 5098155), (4787, 4282365), (12063, 1699385), (14361, 1427455), (20105, 1019631), (23935, 856473), (60315, 339877), (71805, 285491)]