25317440

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1297}}^1$

素因数の和:1375

約数の個数: 56

約数和(自身を含む): 61322712

約数和(自身を除く): 36005272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 1220, 1297, 1952, 2440, 2594, 3904, 4880, 5188, 6485, 9760, 10376, 12970, 19520, 20752, 25940, 41504, 51880, 79117, 83008, 103760, 158234, 207520, 316468, 395585, 415040, 632936, 791170, 1265872, 1582340, 2531744, 3164680, 5063488, 6329360, 12658720, 25317440]

約数ペア:

[(1, 25317440), (2, 12658720), (4, 6329360), (5, 5063488), (8, 3164680), (10, 2531744), (16, 1582340), (20, 1265872), (32, 791170), (40, 632936), (61, 415040), (64, 395585), (80, 316468), (122, 207520), (160, 158234), (244, 103760), (305, 83008), (320, 79117), (488, 51880), (610, 41504), (976, 25940), (1220, 20752), (1297, 19520), (1952, 12970), (2440, 10376), (2594, 9760), (3904, 6485), (4880, 5188)]