8005640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 19485360

約数和(自身を除く): 11479720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 193, 244, 305, 340, 386, 488, 610, 680, 772, 965, 1037, 1220, 1544, 1930, 2074, 2440, 3281, 3860, 4148, 5185, 6562, 7720, 8296, 10370, 11773, 13124, 16405, 20740, 23546, 26248, 32810, 41480, 47092, 58865, 65620, 94184, 117730, 131240, 200141, 235460, 400282, 470920, 800564, 1000705, 1601128, 2001410, 4002820, 8005640]

約数ペア:

[(1, 8005640), (2, 4002820), (4, 2001410), (5, 1601128), (8, 1000705), (10, 800564), (17, 470920), (20, 400282), (34, 235460), (40, 200141), (61, 131240), (68, 117730), (85, 94184), (122, 65620), (136, 58865), (170, 47092), (193, 41480), (244, 32810), (305, 26248), (340, 23546), (386, 20740), (488, 16405), (610, 13124), (680, 11773), (772, 10370), (965, 8296), (1037, 7720), (1220, 6562), (1544, 5185), (1930, 4148), (2074, 3860), (2440, 3281)]