28412320

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{743}}^1$

素因数の和:997

約数の個数: 48

約数和(自身を含む): 67495680

約数和(自身を除く): 39083360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 743, 956, 1195, 1486, 1912, 2390, 2972, 3715, 3824, 4780, 5944, 7430, 7648, 9560, 11888, 14860, 19120, 23776, 29720, 38240, 59440, 118880, 177577, 355154, 710308, 887885, 1420616, 1775770, 2841232, 3551540, 5682464, 7103080, 14206160, 28412320]

約数ペア:

[(1, 28412320), (2, 14206160), (4, 7103080), (5, 5682464), (8, 3551540), (10, 2841232), (16, 1775770), (20, 1420616), (32, 887885), (40, 710308), (80, 355154), (160, 177577), (239, 118880), (478, 59440), (743, 38240), (956, 29720), (1195, 23776), (1486, 19120), (1912, 14860), (2390, 11888), (2972, 9560), (3715, 7648), (3824, 7430), (4780, 5944)]