81244260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2609}}^1$

素因数の和:2797

約数の個数: 72

約数和(自身を含む): 247960440

約数和(自身を除く): 166716180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 173, 180, 346, 519, 692, 865, 1038, 1557, 1730, 2076, 2595, 2609, 3114, 3460, 5190, 5218, 6228, 7785, 7827, 10380, 10436, 13045, 15570, 15654, 23481, 26090, 31140, 31308, 39135, 46962, 52180, 78270, 93924, 117405, 156540, 234810, 451357, 469620, 902714, 1354071, 1805428, 2256785, 2708142, 4062213, 4513570, 5416284, 6770355, 8124426, 9027140, 13540710, 16248852, 20311065, 27081420, 40622130, 81244260]

約数ペア:

[(1, 81244260), (2, 40622130), (3, 27081420), (4, 20311065), (5, 16248852), (6, 13540710), (9, 9027140), (10, 8124426), (12, 6770355), (15, 5416284), (18, 4513570), (20, 4062213), (30, 2708142), (36, 2256785), (45, 1805428), (60, 1354071), (90, 902714), (173, 469620), (180, 451357), (346, 234810), (519, 156540), (692, 117405), (865, 93924), (1038, 78270), (1557, 52180), (1730, 46962), (2076, 39135), (2595, 31308), (2609, 31140), (3114, 26090), (3460, 23481), (5190, 15654), (5218, 15570), (6228, 13045), (7785, 10436), (7827, 10380)]