20545164

素因数分解:

$2^2\times 3^5\times {\mathrm{23}}^1\times {\mathrm{919}}^1$

素因数の和:961

約数の個数: 72

約数和(自身を含む): 56259840

約数和(自身を除く): 35714676

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 81, 92, 108, 138, 162, 207, 243, 276, 324, 414, 486, 621, 828, 919, 972, 1242, 1838, 1863, 2484, 2757, 3676, 3726, 5514, 5589, 7452, 8271, 11028, 11178, 16542, 21137, 22356, 24813, 33084, 42274, 49626, 63411, 74439, 84548, 99252, 126822, 148878, 190233, 223317, 253644, 297756, 380466, 446634, 570699, 760932, 893268, 1141398, 1712097, 2282796, 3424194, 5136291, 6848388, 10272582, 20545164]

約数ペア:

[(1, 20545164), (2, 10272582), (3, 6848388), (4, 5136291), (6, 3424194), (9, 2282796), (12, 1712097), (18, 1141398), (23, 893268), (27, 760932), (36, 570699), (46, 446634), (54, 380466), (69, 297756), (81, 253644), (92, 223317), (108, 190233), (138, 148878), (162, 126822), (207, 99252), (243, 84548), (276, 74439), (324, 63411), (414, 49626), (486, 42274), (621, 33084), (828, 24813), (919, 22356), (972, 21137), (1242, 16542), (1838, 11178), (1863, 11028), (2484, 8271), (2757, 7452), (3676, 5589), (3726, 5514)]