25024640

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:721

約数の個数: 64

約数和(自身を含む): 60900120

約数和(自身を除く): 35875480

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, 641, 976, 1220, 1282, 1952, 2440, 2564, 3205, 3904, 4880, 5128, 6410, 7808, 9760, 10256, 12820, 19520, 20512, 25640, 39040, 39101, 41024, 51280, 78202, 82048, 102560, 156404, 195505, 205120, 312808, 391010, 410240, 625616, 782020, 1251232, 1564040, 2502464, 3128080, 5004928, 6256160, 12512320, 25024640]

約数ペア:

[(1, 25024640), (2, 12512320), (4, 6256160), (5, 5004928), (8, 3128080), (10, 2502464), (16, 1564040), (20, 1251232), (32, 782020), (40, 625616), (61, 410240), (64, 391010), (80, 312808), (122, 205120), (128, 195505), (160, 156404), (244, 102560), (305, 82048), (320, 78202), (488, 51280), (610, 41024), (640, 39101), (641, 39040), (976, 25640), (1220, 20512), (1282, 19520), (1952, 12820), (2440, 10256), (2564, 9760), (3205, 7808), (3904, 6410), (4880, 5128)]