27123640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 65124000

約数和(自身を除く): 38000360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 401, 445, 712, 760, 802, 890, 1604, 1691, 1780, 2005, 3208, 3382, 3560, 4010, 6764, 7619, 8020, 8455, 13528, 15238, 16040, 16910, 30476, 33820, 35689, 38095, 60952, 67640, 71378, 76190, 142756, 152380, 178445, 285512, 304760, 356890, 678091, 713780, 1356182, 1427560, 2712364, 3390455, 5424728, 6780910, 13561820, 27123640]

約数ペア:

[(1, 27123640), (2, 13561820), (4, 6780910), (5, 5424728), (8, 3390455), (10, 2712364), (19, 1427560), (20, 1356182), (38, 713780), (40, 678091), (76, 356890), (89, 304760), (95, 285512), (152, 178445), (178, 152380), (190, 142756), (356, 76190), (380, 71378), (401, 67640), (445, 60952), (712, 38095), (760, 35689), (802, 33820), (890, 30476), (1604, 16910), (1691, 16040), (1780, 15238), (2005, 13528), (3208, 8455), (3382, 8020), (3560, 7619), (4010, 6764)]