72872440

素因数分解:

$2^3\times 5^1\times {\mathrm{673}}^1\times {\mathrm{2707}}^1$

素因数の和:3391

約数の個数: 32

約数和(自身を含む): 164267280

約数和(自身を除く): 91394840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 673, 1346, 2692, 2707, 3365, 5384, 5414, 6730, 10828, 13460, 13535, 21656, 26920, 27070, 54140, 108280, 1821811, 3643622, 7287244, 9109055, 14574488, 18218110, 36436220, 72872440]

約数ペア:

[(1, 72872440), (2, 36436220), (4, 18218110), (5, 14574488), (8, 9109055), (10, 7287244), (20, 3643622), (40, 1821811), (673, 108280), (1346, 54140), (2692, 27070), (2707, 26920), (3365, 21656), (5384, 13535), (5414, 13460), (6730, 10828)]