266774497925

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{60889}}^1$

素因数の和:61003

約数の個数: 72

約数和(自身を含む): 385498730520

約数和(自身を除く): 118724232595

約数列:

[1, 5, 13, 17, 25, 61, 65, 85, 169, 221, 305, 325, 425, 793, 845, 1037, 1105, 1525, 2873, 3965, 4225, 5185, 5525, 10309, 13481, 14365, 19825, 25925, 51545, 60889, 67405, 71825, 175253, 257725, 304445, 337025, 791557, 876265, 1035113, 1522225, 3714229, 3957785, 4381325, 5175565, 10290241, 13456469, 18571145, 19788925, 25877825, 48284977, 51451205, 63141893, 67282345, 92855725, 174934097, 241424885, 257256025, 315709465, 336411725, 627704701, 820844609, 874670485, 1207124425, 1578547325, 3138523505, 4104223045, 4373352425, 10670979917, 15692617525, 20521115225, 53354899585, 266774497925]

約数ペア:

[(1, 266774497925), (5, 53354899585), (13, 20521115225), (17, 15692617525), (25, 10670979917), (61, 4373352425), (65, 4104223045), (85, 3138523505), (169, 1578547325), (221, 1207124425), (305, 874670485), (325, 820844609), (425, 627704701), (793, 336411725), (845, 315709465), (1037, 257256025), (1105, 241424885), (1525, 174934097), (2873, 92855725), (3965, 67282345), (4225, 63141893), (5185, 51451205), (5525, 48284977), (10309, 25877825), (13481, 19788925), (14365, 18571145), (19825, 13456469), (25925, 10290241), (51545, 5175565), (60889, 4381325), (67405, 3957785), (71825, 3714229), (175253, 1522225), (257725, 1035113), (304445, 876265), (337025, 791557)]