25784360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1297}}^1$

素因数の和:1386

約数の個数: 64

約数和(自身を含む): 67288320

約数和(自身を除く): 41503960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1297, 1420, 1988, 2485, 2594, 2840, 3976, 4970, 5188, 6485, 9079, 9940, 10376, 12970, 18158, 19880, 25940, 36316, 45395, 51880, 72632, 90790, 92087, 181580, 184174, 363160, 368348, 460435, 644609, 736696, 920870, 1289218, 1841740, 2578436, 3223045, 3683480, 5156872, 6446090, 12892180, 25784360]

約数ペア:

[(1, 25784360), (2, 12892180), (4, 6446090), (5, 5156872), (7, 3683480), (8, 3223045), (10, 2578436), (14, 1841740), (20, 1289218), (28, 920870), (35, 736696), (40, 644609), (56, 460435), (70, 368348), (71, 363160), (140, 184174), (142, 181580), (280, 92087), (284, 90790), (355, 72632), (497, 51880), (568, 45395), (710, 36316), (994, 25940), (1297, 19880), (1420, 18158), (1988, 12970), (2485, 10376), (2594, 9940), (2840, 9079), (3976, 6485), (4970, 5188)]