2005405080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{947}}^1\times {\mathrm{2521}}^1$

素因数の和:3489

約数の個数: 128

約数和(自身を含む): 6885665280

約数和(自身を除く): 4880260200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 947, 1894, 2521, 2841, 3788, 4735, 5042, 5682, 6629, 7563, 7576, 9470, 10084, 11364, 12605, 13258, 14205, 15126, 17647, 18940, 19887, 20168, 22728, 25210, 26516, 28410, 30252, 33145, 35294, 37815, 37880, 39774, 50420, 52941, 53032, 56820, 60504, 66290, 70588, 75630, 79548, 88235, 99435, 100840, 105882, 113640, 132580, 141176, 151260, 159096, 176470, 198870, 211764, 264705, 265160, 302520, 352940, 397740, 423528, 529410, 705880, 795480, 1058820, 2117640, 2387387, 4774774, 7162161, 9549548, 11936935, 14324322, 16711709, 19099096, 23873870, 28648644, 33423418, 35810805, 47747740, 50135127, 57297288, 66846836, 71621610, 83558545, 95495480, 100270254, 133693672, 143243220, 167117090, 200540508, 250675635, 286486440, 334234180, 401081016, 501351270, 668468360, 1002702540, 2005405080]

約数ペア:

[(1, 2005405080), (2, 1002702540), (3, 668468360), (4, 501351270), (5, 401081016), (6, 334234180), (7, 286486440), (8, 250675635), (10, 200540508), (12, 167117090), (14, 143243220), (15, 133693672), (20, 100270254), (21, 95495480), (24, 83558545), (28, 71621610), (30, 66846836), (35, 57297288), (40, 50135127), (42, 47747740), (56, 35810805), (60, 33423418), (70, 28648644), (84, 23873870), (105, 19099096), (120, 16711709), (140, 14324322), (168, 11936935), (210, 9549548), (280, 7162161), (420, 4774774), (840, 2387387), (947, 2117640), (1894, 1058820), (2521, 795480), (2841, 705880), (3788, 529410), (4735, 423528), (5042, 397740), (5682, 352940), (6629, 302520), (7563, 265160), (7576, 264705), (9470, 211764), (10084, 198870), (11364, 176470), (12605, 159096), (13258, 151260), (14205, 141176), (15126, 132580), (17647, 113640), (18940, 105882), (19887, 100840), (20168, 99435), (22728, 88235), (25210, 79548), (26516, 75630), (28410, 70588), (30252, 66290), (33145, 60504), (35294, 56820), (37815, 53032), (37880, 52941), (39774, 50420)]