30131480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{607}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 72887040

約数和(自身を除く): 42755560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 73, 85, 136, 146, 170, 292, 340, 365, 584, 607, 680, 730, 1214, 1241, 1460, 2428, 2482, 2920, 3035, 4856, 4964, 6070, 6205, 9928, 10319, 12140, 12410, 20638, 24280, 24820, 41276, 44311, 49640, 51595, 82552, 88622, 103190, 177244, 206380, 221555, 354488, 412760, 443110, 753287, 886220, 1506574, 1772440, 3013148, 3766435, 6026296, 7532870, 15065740, 30131480]

約数ペア:

[(1, 30131480), (2, 15065740), (4, 7532870), (5, 6026296), (8, 3766435), (10, 3013148), (17, 1772440), (20, 1506574), (34, 886220), (40, 753287), (68, 443110), (73, 412760), (85, 354488), (136, 221555), (146, 206380), (170, 177244), (292, 103190), (340, 88622), (365, 82552), (584, 51595), (607, 49640), (680, 44311), (730, 41276), (1214, 24820), (1241, 24280), (1460, 20638), (2428, 12410), (2482, 12140), (2920, 10319), (3035, 9928), (4856, 6205), (4964, 6070)]