28097460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1123}}^1$

素因数の和:1277

約数の個数: 72

約数和(自身を含む): 85918560

約数和(自身を除く): 57821100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1123, 1251, 1390, 1668, 2085, 2246, 2502, 2780, 3369, 4170, 4492, 5004, 5615, 6255, 6738, 8340, 10107, 11230, 12510, 13476, 16845, 20214, 22460, 25020, 33690, 40428, 50535, 67380, 101070, 156097, 202140, 312194, 468291, 624388, 780485, 936582, 1404873, 1560970, 1873164, 2341455, 2809746, 3121940, 4682910, 5619492, 7024365, 9365820, 14048730, 28097460]

約数ペア:

[(1, 28097460), (2, 14048730), (3, 9365820), (4, 7024365), (5, 5619492), (6, 4682910), (9, 3121940), (10, 2809746), (12, 2341455), (15, 1873164), (18, 1560970), (20, 1404873), (30, 936582), (36, 780485), (45, 624388), (60, 468291), (90, 312194), (139, 202140), (180, 156097), (278, 101070), (417, 67380), (556, 50535), (695, 40428), (834, 33690), (1123, 25020), (1251, 22460), (1390, 20214), (1668, 16845), (2085, 13476), (2246, 12510), (2502, 11230), (2780, 10107), (3369, 8340), (4170, 6738), (4492, 6255), (5004, 5615)]