28861240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42443}}^1$

素因数の和:42471

約数の個数: 32

約数和(自身を含む): 68759280

約数和(自身を除く): 39898040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 42443, 84886, 169772, 212215, 339544, 424430, 721531, 848860, 1443062, 1697720, 2886124, 3607655, 5772248, 7215310, 14430620, 28861240]

約数ペア:

[(1, 28861240), (2, 14430620), (4, 7215310), (5, 5772248), (8, 3607655), (10, 2886124), (17, 1697720), (20, 1443062), (34, 848860), (40, 721531), (68, 424430), (85, 339544), (136, 212215), (170, 169772), (340, 84886), (680, 42443)]