25513740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{20249}}^1$

素因数の和:20271

約数の個数: 72

約数和(自身を含む): 88452000

約数和(自身を除く): 62938260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 20249, 40498, 60747, 80996, 101245, 121494, 141743, 182241, 202490, 242988, 283486, 303735, 364482, 404980, 425229, 566972, 607470, 708715, 728964, 850458, 911205, 1214940, 1275687, 1417430, 1700916, 1822410, 2126145, 2551374, 2834860, 3644820, 4252290, 5102748, 6378435, 8504580, 12756870, 25513740]

約数ペア:

[(1, 25513740), (2, 12756870), (3, 8504580), (4, 6378435), (5, 5102748), (6, 4252290), (7, 3644820), (9, 2834860), (10, 2551374), (12, 2126145), (14, 1822410), (15, 1700916), (18, 1417430), (20, 1275687), (21, 1214940), (28, 911205), (30, 850458), (35, 728964), (36, 708715), (42, 607470), (45, 566972), (60, 425229), (63, 404980), (70, 364482), (84, 303735), (90, 283486), (105, 242988), (126, 202490), (140, 182241), (180, 141743), (210, 121494), (252, 101245), (315, 80996), (420, 60747), (630, 40498), (1260, 20249)]