2018077840

素因数分解:

$2^4\times 5^1\times {\mathrm{557}}^1\times {\mathrm{45289}}^1$

素因数の和:45859

約数の個数: 40

約数和(自身を含む): 4700558520

約数和(自身を除く): 2682480680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 557, 1114, 2228, 2785, 4456, 5570, 8912, 11140, 22280, 44560, 45289, 90578, 181156, 226445, 362312, 452890, 724624, 905780, 1811560, 3623120, 25225973, 50451946, 100903892, 126129865, 201807784, 252259730, 403615568, 504519460, 1009038920, 2018077840]

約数ペア:

[(1, 2018077840), (2, 1009038920), (4, 504519460), (5, 403615568), (8, 252259730), (10, 201807784), (16, 126129865), (20, 100903892), (40, 50451946), (80, 25225973), (557, 3623120), (1114, 1811560), (2228, 905780), (2785, 724624), (4456, 452890), (5570, 362312), (8912, 226445), (11140, 181156), (22280, 90578), (44560, 45289)]