81447960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61703}}^1$

素因数の和:61728

約数の個数: 64

約数和(自身を含む): 266561280

約数和(自身を除く): 185113320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 61703, 123406, 185109, 246812, 308515, 370218, 493624, 617030, 678733, 740436, 925545, 1234060, 1357466, 1480872, 1851090, 2036199, 2468120, 2714932, 3393665, 3702180, 4072398, 5429864, 6787330, 7404360, 8144796, 10180995, 13574660, 16289592, 20361990, 27149320, 40723980, 81447960]

約数ペア:

[(1, 81447960), (2, 40723980), (3, 27149320), (4, 20361990), (5, 16289592), (6, 13574660), (8, 10180995), (10, 8144796), (11, 7404360), (12, 6787330), (15, 5429864), (20, 4072398), (22, 3702180), (24, 3393665), (30, 2714932), (33, 2468120), (40, 2036199), (44, 1851090), (55, 1480872), (60, 1357466), (66, 1234060), (88, 925545), (110, 740436), (120, 678733), (132, 617030), (165, 493624), (220, 370218), (264, 308515), (330, 246812), (440, 185109), (660, 123406), (1320, 61703)]