90808840

素因数分解:

$2^3\times 5^1\times {\mathrm{907}}^1\times {\mathrm{2503}}^1$

素因数の和:3421

約数の個数: 32

約数和(自身を含む): 204626880

約数和(自身を除く): 113818040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 907, 1814, 2503, 3628, 4535, 5006, 7256, 9070, 10012, 12515, 18140, 20024, 25030, 36280, 50060, 100120, 2270221, 4540442, 9080884, 11351105, 18161768, 22702210, 45404420, 90808840]

約数ペア:

[(1, 90808840), (2, 45404420), (4, 22702210), (5, 18161768), (8, 11351105), (10, 9080884), (20, 4540442), (40, 2270221), (907, 100120), (1814, 50060), (2503, 36280), (3628, 25030), (4535, 20024), (5006, 18140), (7256, 12515), (9070, 10012)]