20161331312

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{971}}^1\times {\mathrm{27611}}^1$

素因数の和:28637

約数の個数: 40

約数和(自身を含む): 39936229632

約数和(自身を除く): 19774898320

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 971, 1942, 3884, 7768, 15536, 27611, 45637, 55222, 91274, 110444, 182548, 220888, 365096, 441776, 730192, 1297717, 2595434, 5190868, 10381736, 20763472, 26810281, 53620562, 107241124, 214482248, 428964496, 1260083207, 2520166414, 5040332828, 10080665656, 20161331312]

約数ペア:

[(1, 20161331312), (2, 10080665656), (4, 5040332828), (8, 2520166414), (16, 1260083207), (47, 428964496), (94, 214482248), (188, 107241124), (376, 53620562), (752, 26810281), (971, 20763472), (1942, 10381736), (3884, 5190868), (7768, 2595434), (15536, 1297717), (27611, 730192), (45637, 441776), (55222, 365096), (91274, 220888), (110444, 182548)]