38712780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{479}}^1$

素因数の和:943

約数の個数: 72

約数和(自身を含む): 117936000

約数和(自身を除く): 79223220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449, 479, 898, 958, 1347, 1437, 1796, 1916, 2245, 2395, 2694, 2874, 4041, 4311, 4490, 4790, 5388, 5748, 6735, 7185, 8082, 8622, 8980, 9580, 13470, 14370, 16164, 17244, 20205, 21555, 26940, 28740, 40410, 43110, 80820, 86220, 215071, 430142, 645213, 860284, 1075355, 1290426, 1935639, 2150710, 2580852, 3226065, 3871278, 4301420, 6452130, 7742556, 9678195, 12904260, 19356390, 38712780]

約数ペア:

[(1, 38712780), (2, 19356390), (3, 12904260), (4, 9678195), (5, 7742556), (6, 6452130), (9, 4301420), (10, 3871278), (12, 3226065), (15, 2580852), (18, 2150710), (20, 1935639), (30, 1290426), (36, 1075355), (45, 860284), (60, 645213), (90, 430142), (180, 215071), (449, 86220), (479, 80820), (898, 43110), (958, 40410), (1347, 28740), (1437, 26940), (1796, 21555), (1916, 20205), (2245, 17244), (2395, 16164), (2694, 14370), (2874, 13470), (4041, 9580), (4311, 8980), (4490, 8622), (4790, 8082), (5388, 7185), (5748, 6735)]