262496065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 379330560

約数和(自身を除く): 116834495

約数列:

[1, 5, 13, 17, 31, 65, 79, 85, 97, 155, 221, 395, 403, 485, 527, 1027, 1105, 1261, 1343, 1649, 2015, 2449, 2635, 3007, 5135, 6305, 6715, 6851, 7663, 8245, 12245, 15035, 17459, 21437, 31837, 34255, 38315, 39091, 41633, 51119, 87295, 99619, 107185, 130271, 159185, 195455, 208165, 237553, 255595, 498095, 541229, 651355, 664547, 1187765, 1693523, 2706145, 3088189, 3322735, 4038401, 8467615, 15440945, 20192005, 52499213, 262496065]

約数ペア:

[(1, 262496065), (5, 52499213), (13, 20192005), (17, 15440945), (31, 8467615), (65, 4038401), (79, 3322735), (85, 3088189), (97, 2706145), (155, 1693523), (221, 1187765), (395, 664547), (403, 651355), (485, 541229), (527, 498095), (1027, 255595), (1105, 237553), (1261, 208165), (1343, 195455), (1649, 159185), (2015, 130271), (2449, 107185), (2635, 99619), (3007, 87295), (5135, 51119), (6305, 41633), (6715, 39091), (6851, 38315), (7663, 34255), (8245, 31837), (12245, 21437), (15035, 17459)]