28718240

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{751}}^1$

素因数の和:1005

約数の個数: 48

約数和(自身を含む): 68221440

約数和(自身を除く): 39503200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 751, 956, 1195, 1502, 1912, 2390, 3004, 3755, 3824, 4780, 6008, 7510, 7648, 9560, 12016, 15020, 19120, 24032, 30040, 38240, 60080, 120160, 179489, 358978, 717956, 897445, 1435912, 1794890, 2871824, 3589780, 5743648, 7179560, 14359120, 28718240]

約数ペア:

[(1, 28718240), (2, 14359120), (4, 7179560), (5, 5743648), (8, 3589780), (10, 2871824), (16, 1794890), (20, 1435912), (32, 897445), (40, 717956), (80, 358978), (160, 179489), (239, 120160), (478, 60080), (751, 38240), (956, 30040), (1195, 24032), (1502, 19120), (1912, 15020), (2390, 12016), (3004, 9560), (3755, 7648), (3824, 7510), (4780, 6008)]