25769980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 56538720

約数和(自身を除く): 30768740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 157, 283, 290, 314, 566, 580, 628, 785, 1132, 1415, 1570, 2830, 3140, 4553, 5660, 8207, 9106, 16414, 18212, 22765, 32828, 41035, 44431, 45530, 82070, 88862, 91060, 164140, 177724, 222155, 444310, 888620, 1288499, 2576998, 5153996, 6442495, 12884990, 25769980]

約数ペア:

[(1, 25769980), (2, 12884990), (4, 6442495), (5, 5153996), (10, 2576998), (20, 1288499), (29, 888620), (58, 444310), (116, 222155), (145, 177724), (157, 164140), (283, 91060), (290, 88862), (314, 82070), (566, 45530), (580, 44431), (628, 41035), (785, 32828), (1132, 22765), (1415, 18212), (1570, 16414), (2830, 9106), (3140, 8207), (4553, 5660)]