25540620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{60811}}^1$

素因数の和:60830

約数の個数: 48

約数和(自身を含む): 81731328

約数和(自身を除く): 56190708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 60811, 121622, 182433, 243244, 304055, 364866, 425677, 608110, 729732, 851354, 912165, 1216220, 1277031, 1702708, 1824330, 2128385, 2554062, 3648660, 4256770, 5108124, 6385155, 8513540, 12770310, 25540620]

約数ペア:

[(1, 25540620), (2, 12770310), (3, 8513540), (4, 6385155), (5, 5108124), (6, 4256770), (7, 3648660), (10, 2554062), (12, 2128385), (14, 1824330), (15, 1702708), (20, 1277031), (21, 1216220), (28, 912165), (30, 851354), (35, 729732), (42, 608110), (60, 425677), (70, 364866), (84, 304055), (105, 243244), (140, 182433), (210, 121622), (420, 60811)]