172171905

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1\times {\mathrm{1303}}^1$

素因数の和:1717

約数の個数: 32

約数和(自身を含む): 288423936

約数和(自身を除く): 116252031

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 383, 1149, 1303, 1915, 3909, 5745, 6515, 8809, 19545, 26427, 29969, 44045, 89907, 132135, 149845, 449535, 499049, 1497147, 2495245, 7485735, 11478127, 34434381, 57390635, 172171905]

約数ペア:

[(1, 172171905), (3, 57390635), (5, 34434381), (15, 11478127), (23, 7485735), (69, 2495245), (115, 1497147), (345, 499049), (383, 449535), (1149, 149845), (1303, 132135), (1915, 89907), (3909, 44045), (5745, 29969), (6515, 26427), (8809, 19545)]