81494520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29527}}^1$

素因数の和:29564

約数の個数: 64

約数和(自身を含む): 255121920

約数和(自身を除く): 173627400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 29527, 59054, 88581, 118108, 147635, 177162, 236216, 295270, 354324, 442905, 590540, 679121, 708648, 885810, 1181080, 1358242, 1771620, 2037363, 2716484, 3395605, 3543240, 4074726, 5432968, 6791210, 8149452, 10186815, 13582420, 16298904, 20373630, 27164840, 40747260, 81494520]

約数ペア:

[(1, 81494520), (2, 40747260), (3, 27164840), (4, 20373630), (5, 16298904), (6, 13582420), (8, 10186815), (10, 8149452), (12, 6791210), (15, 5432968), (20, 4074726), (23, 3543240), (24, 3395605), (30, 2716484), (40, 2037363), (46, 1771620), (60, 1358242), (69, 1181080), (92, 885810), (115, 708648), (120, 679121), (138, 590540), (184, 442905), (230, 354324), (276, 295270), (345, 236216), (460, 177162), (552, 147635), (690, 118108), (920, 88581), (1380, 59054), (2760, 29527)]