19812540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2729}}^1$

素因数の和:2763

約数の個数: 72

約数和(自身を含む): 60999120

約数和(自身を除く): 41186580

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 2729, 3630, 5458, 7260, 8187, 10916, 13645, 16374, 27290, 30019, 32748, 40935, 54580, 60038, 81870, 90057, 120076, 150095, 163740, 180114, 300190, 330209, 360228, 450285, 600380, 660418, 900570, 990627, 1320836, 1651045, 1801140, 1981254, 3302090, 3962508, 4953135, 6604180, 9906270, 19812540]

約数ペア:

[(1, 19812540), (2, 9906270), (3, 6604180), (4, 4953135), (5, 3962508), (6, 3302090), (10, 1981254), (11, 1801140), (12, 1651045), (15, 1320836), (20, 990627), (22, 900570), (30, 660418), (33, 600380), (44, 450285), (55, 360228), (60, 330209), (66, 300190), (110, 180114), (121, 163740), (132, 150095), (165, 120076), (220, 90057), (242, 81870), (330, 60038), (363, 54580), (484, 40935), (605, 32748), (660, 30019), (726, 27290), (1210, 16374), (1452, 13645), (1815, 10916), (2420, 8187), (2729, 7260), (3630, 5458)]