784865240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{6427}}^1$

素因数の和:6552

約数の個数: 64

約数和(自身を含む): 1832751360

約数和(自身を除く): 1047886120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 71, 86, 142, 172, 215, 284, 344, 355, 430, 568, 710, 860, 1420, 1720, 2840, 3053, 6106, 6427, 12212, 12854, 15265, 24424, 25708, 30530, 32135, 51416, 61060, 64270, 122120, 128540, 257080, 276361, 456317, 552722, 912634, 1105444, 1381805, 1825268, 2210888, 2281585, 2763610, 3650536, 4563170, 5527220, 9126340, 11054440, 18252680, 19621631, 39243262, 78486524, 98108155, 156973048, 196216310, 392432620, 784865240]

約数ペア:

[(1, 784865240), (2, 392432620), (4, 196216310), (5, 156973048), (8, 98108155), (10, 78486524), (20, 39243262), (40, 19621631), (43, 18252680), (71, 11054440), (86, 9126340), (142, 5527220), (172, 4563170), (215, 3650536), (284, 2763610), (344, 2281585), (355, 2210888), (430, 1825268), (568, 1381805), (710, 1105444), (860, 912634), (1420, 552722), (1720, 456317), (2840, 276361), (3053, 257080), (6106, 128540), (6427, 122120), (12212, 64270), (12854, 61060), (15265, 51416), (24424, 32135), (25708, 30530)]