51025280

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1307}}^1$

素因数の和:1387

約数の個数: 64

約数和(自身を含む): 124076880

約数和(自身を除く): 73051600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 976, 1220, 1307, 1952, 2440, 2614, 3904, 4880, 5228, 6535, 7808, 9760, 10456, 13070, 19520, 20912, 26140, 39040, 41824, 52280, 79727, 83648, 104560, 159454, 167296, 209120, 318908, 398635, 418240, 637816, 797270, 836480, 1275632, 1594540, 2551264, 3189080, 5102528, 6378160, 10205056, 12756320, 25512640, 51025280]

約数ペア:

[(1, 51025280), (2, 25512640), (4, 12756320), (5, 10205056), (8, 6378160), (10, 5102528), (16, 3189080), (20, 2551264), (32, 1594540), (40, 1275632), (61, 836480), (64, 797270), (80, 637816), (122, 418240), (128, 398635), (160, 318908), (244, 209120), (305, 167296), (320, 159454), (488, 104560), (610, 83648), (640, 79727), (976, 52280), (1220, 41824), (1307, 39040), (1952, 26140), (2440, 20912), (2614, 19520), (3904, 13070), (4880, 10456), (5228, 9760), (6535, 7808)]