28691240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42193}}^1$

素因数の和:42221

約数の個数: 32

約数和(自身を含む): 68354280

約数和(自身を除く): 39663040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 42193, 84386, 168772, 210965, 337544, 421930, 717281, 843860, 1434562, 1687720, 2869124, 3586405, 5738248, 7172810, 14345620, 28691240]

約数ペア:

[(1, 28691240), (2, 14345620), (4, 7172810), (5, 5738248), (8, 3586405), (10, 2869124), (17, 1687720), (20, 1434562), (34, 843860), (40, 717281), (68, 421930), (85, 337544), (136, 210965), (170, 168772), (340, 84386), (680, 42193)]