287992012

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{599}}^1$

素因数の和:851

約数の個数: 72

約数和(自身を含む): 643507200

約数和(自身を除く): 355515188

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 223, 308, 446, 539, 599, 892, 1078, 1198, 1561, 2156, 2396, 2453, 3122, 4193, 4906, 6244, 6589, 8386, 9812, 10927, 13178, 16772, 17171, 21854, 26356, 29351, 34342, 43708, 46123, 58702, 68684, 92246, 117404, 120197, 133577, 184492, 240394, 267154, 322861, 480788, 534308, 645722, 935039, 1291444, 1469347, 1870078, 2938694, 3740156, 5877388, 6545273, 10285429, 13090546, 20570858, 26181092, 41141716, 71998003, 143996006, 287992012]

約数ペア:

[(1, 287992012), (2, 143996006), (4, 71998003), (7, 41141716), (11, 26181092), (14, 20570858), (22, 13090546), (28, 10285429), (44, 6545273), (49, 5877388), (77, 3740156), (98, 2938694), (154, 1870078), (196, 1469347), (223, 1291444), (308, 935039), (446, 645722), (539, 534308), (599, 480788), (892, 322861), (1078, 267154), (1198, 240394), (1561, 184492), (2156, 133577), (2396, 120197), (2453, 117404), (3122, 92246), (4193, 68684), (4906, 58702), (6244, 46123), (6589, 43708), (8386, 34342), (9812, 29351), (10927, 26356), (13178, 21854), (16772, 17171)]