391285875

素因数分解:

$3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{347}}^1$

素因数の和:493

約数の個数: 64

約数和(自身を含む): 680988672

約数和(自身を除く): 289702797

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 97, 125, 155, 291, 347, 375, 465, 485, 775, 1041, 1455, 1735, 2325, 2425, 3007, 3875, 5205, 7275, 8675, 9021, 10757, 11625, 12125, 15035, 26025, 32271, 33659, 36375, 43375, 45105, 53785, 75175, 100977, 130125, 161355, 168295, 225525, 268925, 375875, 504885, 806775, 841475, 1043429, 1127625, 1344625, 2524425, 3130287, 4033875, 4207375, 5217145, 12622125, 15651435, 26085725, 78257175, 130428625, 391285875]

約数ペア:

[(1, 391285875), (3, 130428625), (5, 78257175), (15, 26085725), (25, 15651435), (31, 12622125), (75, 5217145), (93, 4207375), (97, 4033875), (125, 3130287), (155, 2524425), (291, 1344625), (347, 1127625), (375, 1043429), (465, 841475), (485, 806775), (775, 504885), (1041, 375875), (1455, 268925), (1735, 225525), (2325, 168295), (2425, 161355), (3007, 130125), (3875, 100977), (5205, 75175), (7275, 53785), (8675, 45105), (9021, 43375), (10757, 36375), (11625, 33659), (12125, 32271), (15035, 26025)]