18845180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 42910560

約数和(自身を除く): 24065380

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1289, 1462, 2578, 2924, 3655, 5156, 6445, 7310, 12890, 14620, 21913, 25780, 43826, 55427, 87652, 109565, 110854, 219130, 221708, 277135, 438260, 554270, 942259, 1108540, 1884518, 3769036, 4711295, 9422590, 18845180]

約数ペア:

[(1, 18845180), (2, 9422590), (4, 4711295), (5, 3769036), (10, 1884518), (17, 1108540), (20, 942259), (34, 554270), (43, 438260), (68, 277135), (85, 221708), (86, 219130), (170, 110854), (172, 109565), (215, 87652), (340, 55427), (430, 43826), (731, 25780), (860, 21913), (1289, 14620), (1462, 12890), (2578, 7310), (2924, 6445), (3655, 5156)]