81590460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{194263}}^1$

素因数の和:194282

約数の個数: 48

約数和(自身を含む): 261090816

約数和(自身を除く): 179500356

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 194263, 388526, 582789, 777052, 971315, 1165578, 1359841, 1942630, 2331156, 2719682, 2913945, 3885260, 4079523, 5439364, 5827890, 6799205, 8159046, 11655780, 13598410, 16318092, 20397615, 27196820, 40795230, 81590460]

約数ペア:

[(1, 81590460), (2, 40795230), (3, 27196820), (4, 20397615), (5, 16318092), (6, 13598410), (7, 11655780), (10, 8159046), (12, 6799205), (14, 5827890), (15, 5439364), (20, 4079523), (21, 3885260), (28, 2913945), (30, 2719682), (35, 2331156), (42, 1942630), (60, 1359841), (70, 1165578), (84, 971315), (105, 777052), (140, 582789), (210, 388526), (420, 194263)]