81393732

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1867}}^1$

素因数の和:2057

約数の個数: 72

約数和(自身を含む): 236623296

約数和(自身を除く): 155229564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 173, 252, 346, 519, 692, 1038, 1211, 1557, 1867, 2076, 2422, 3114, 3633, 3734, 4844, 5601, 6228, 7266, 7468, 10899, 11202, 13069, 14532, 16803, 21798, 22404, 26138, 33606, 39207, 43596, 52276, 67212, 78414, 117621, 156828, 235242, 322991, 470484, 645982, 968973, 1291964, 1937946, 2260937, 2906919, 3875892, 4521874, 5813838, 6782811, 9043748, 11627676, 13565622, 20348433, 27131244, 40696866, 81393732]

約数ペア:

[(1, 81393732), (2, 40696866), (3, 27131244), (4, 20348433), (6, 13565622), (7, 11627676), (9, 9043748), (12, 6782811), (14, 5813838), (18, 4521874), (21, 3875892), (28, 2906919), (36, 2260937), (42, 1937946), (63, 1291964), (84, 968973), (126, 645982), (173, 470484), (252, 322991), (346, 235242), (519, 156828), (692, 117621), (1038, 78414), (1211, 67212), (1557, 52276), (1867, 43596), (2076, 39207), (2422, 33606), (3114, 26138), (3633, 22404), (3734, 21798), (4844, 16803), (5601, 14532), (6228, 13069), (7266, 11202), (7468, 10899)]