28441240

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{2243}}^1$

素因数の和:2571

約数の個数: 32

約数和(自身を含む): 64223280

約数和(自身を除く): 35782040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2243, 2536, 3170, 4486, 6340, 8972, 11215, 12680, 17944, 22430, 44860, 89720, 711031, 1422062, 2844124, 3555155, 5688248, 7110310, 14220620, 28441240]

約数ペア:

[(1, 28441240), (2, 14220620), (4, 7110310), (5, 5688248), (8, 3555155), (10, 2844124), (20, 1422062), (40, 711031), (317, 89720), (634, 44860), (1268, 22430), (1585, 17944), (2243, 12680), (2536, 11215), (3170, 8972), (4486, 6340)]