13561820

素因数分解:

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

素因数の和:518

約数の個数: 48

約数和(自身を含む): 30391200

約数和(自身を除く): 16829380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 401, 445, 802, 890, 1604, 1691, 1780, 2005, 3382, 4010, 6764, 7619, 8020, 8455, 15238, 16910, 30476, 33820, 35689, 38095, 71378, 76190, 142756, 152380, 178445, 356890, 678091, 713780, 1356182, 2712364, 3390455, 6780910, 13561820]

約数ペア:

[(1, 13561820), (2, 6780910), (4, 3390455), (5, 2712364), (10, 1356182), (19, 713780), (20, 678091), (38, 356890), (76, 178445), (89, 152380), (95, 142756), (178, 76190), (190, 71378), (356, 38095), (380, 35689), (401, 33820), (445, 30476), (802, 16910), (890, 15238), (1604, 8455), (1691, 8020), (1780, 7619), (2005, 6764), (3382, 4010)]