20152426

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 37756800

約数和(自身を除く): 17604374

約数列:

[1, 2, 7, 14, 19, 38, 49, 79, 98, 133, 137, 158, 266, 274, 553, 931, 959, 1106, 1501, 1862, 1918, 2603, 3002, 3871, 5206, 6713, 7742, 10507, 10823, 13426, 18221, 21014, 21646, 36442, 73549, 75761, 127547, 147098, 151522, 205637, 255094, 411274, 530327, 1060654, 1439459, 2878918, 10076213, 20152426]

約数ペア:

[(1, 20152426), (2, 10076213), (7, 2878918), (14, 1439459), (19, 1060654), (38, 530327), (49, 411274), (79, 255094), (98, 205637), (133, 151522), (137, 147098), (158, 127547), (266, 75761), (274, 73549), (553, 36442), (931, 21646), (959, 21014), (1106, 18221), (1501, 13426), (1862, 10823), (1918, 10507), (2603, 7742), (3002, 6713), (3871, 5206)]