199828790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1297}}^1$

素因数の和:1413

約数の個数: 64

約数和(自身を含む): 430645248

約数和(自身を除く): 230816458

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 71, 142, 155, 217, 310, 355, 434, 497, 710, 994, 1085, 1297, 2170, 2201, 2485, 2594, 4402, 4970, 6485, 9079, 11005, 12970, 15407, 18158, 22010, 30814, 40207, 45395, 77035, 80414, 90790, 92087, 154070, 184174, 201035, 281449, 402070, 460435, 562898, 644609, 920870, 1289218, 1407245, 2814490, 2854697, 3223045, 5709394, 6446090, 14273485, 19982879, 28546970, 39965758, 99914395, 199828790]

約数ペア:

[(1, 199828790), (2, 99914395), (5, 39965758), (7, 28546970), (10, 19982879), (14, 14273485), (31, 6446090), (35, 5709394), (62, 3223045), (70, 2854697), (71, 2814490), (142, 1407245), (155, 1289218), (217, 920870), (310, 644609), (355, 562898), (434, 460435), (497, 402070), (710, 281449), (994, 201035), (1085, 184174), (1297, 154070), (2170, 92087), (2201, 90790), (2485, 80414), (2594, 77035), (4402, 45395), (4970, 40207), (6485, 30814), (9079, 22010), (11005, 18158), (12970, 15407)]