257996865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2273}}^1$

素因数の和:2358

約数の個数: 64

約数和(自身を含む): 502972416

約数和(自身を除く): 244975551

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 47, 69, 105, 115, 141, 161, 235, 329, 345, 483, 705, 805, 987, 1081, 1645, 2273, 2415, 3243, 4935, 5405, 6819, 7567, 11365, 15911, 16215, 22701, 34095, 37835, 47733, 52279, 79555, 106831, 113505, 156837, 238665, 261395, 320493, 365953, 534155, 747817, 784185, 1097859, 1602465, 1829765, 2243451, 2457113, 3739085, 5489295, 7371339, 11217255, 12285565, 17199791, 36856695, 51599373, 85998955, 257996865]

約数ペア:

[(1, 257996865), (3, 85998955), (5, 51599373), (7, 36856695), (15, 17199791), (21, 12285565), (23, 11217255), (35, 7371339), (47, 5489295), (69, 3739085), (105, 2457113), (115, 2243451), (141, 1829765), (161, 1602465), (235, 1097859), (329, 784185), (345, 747817), (483, 534155), (705, 365953), (805, 320493), (987, 261395), (1081, 238665), (1645, 156837), (2273, 113505), (2415, 106831), (3243, 79555), (4935, 52279), (5405, 47733), (6819, 37835), (7567, 34095), (11365, 22701), (15911, 16215)]