51279660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{821}}^1$

素因数の和:1183

約数の個数: 72

約数和(自身を含む): 156186576

約数和(自身を除く): 104906916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 347, 694, 821, 1041, 1388, 1642, 1735, 2082, 2463, 3123, 3284, 3470, 4105, 4164, 4926, 5205, 6246, 6940, 7389, 8210, 9852, 10410, 12315, 12492, 14778, 15615, 16420, 20820, 24630, 29556, 31230, 36945, 49260, 62460, 73890, 147780, 284887, 569774, 854661, 1139548, 1424435, 1709322, 2563983, 2848870, 3418644, 4273305, 5127966, 5697740, 8546610, 10255932, 12819915, 17093220, 25639830, 51279660]

約数ペア:

[(1, 51279660), (2, 25639830), (3, 17093220), (4, 12819915), (5, 10255932), (6, 8546610), (9, 5697740), (10, 5127966), (12, 4273305), (15, 3418644), (18, 2848870), (20, 2563983), (30, 1709322), (36, 1424435), (45, 1139548), (60, 854661), (90, 569774), (180, 284887), (347, 147780), (694, 73890), (821, 62460), (1041, 49260), (1388, 36945), (1642, 31230), (1735, 29556), (2082, 24630), (2463, 20820), (3123, 16420), (3284, 15615), (3470, 14778), (4105, 12492), (4164, 12315), (4926, 10410), (5205, 9852), (6246, 8210), (6940, 7389)]