2490420790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:479

約数の個数: 128

約数和(自身を含む): 5467512960

約数和(自身を除く): 2977092170

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 37, 55, 65, 74, 110, 121, 130, 143, 185, 242, 286, 370, 389, 407, 481, 605, 715, 778, 814, 962, 1210, 1331, 1430, 1573, 1945, 2035, 2405, 2662, 3146, 3890, 4070, 4279, 4477, 4810, 5057, 5291, 6655, 7865, 8558, 8954, 10114, 10582, 13310, 14393, 15730, 17303, 21395, 22385, 25285, 26455, 28786, 34606, 42790, 44770, 47069, 49247, 50570, 52910, 55627, 58201, 71965, 86515, 94138, 98494, 111254, 116402, 143930, 158323, 173030, 187109, 235345, 246235, 278135, 291005, 316646, 374218, 470690, 492470, 517759, 556270, 582010, 611897, 640211, 791615, 935545, 1035518, 1223794, 1280422, 1583230, 1741553, 1871090, 2058199, 2588795, 3059485, 3201055, 3483106, 4116398, 5177590, 6118970, 6402110, 6730867, 8707765, 10290995, 13461734, 17415530, 19157083, 20581990, 22640189, 33654335, 38314166, 45280378, 67308670, 95785415, 113200945, 191570830, 226401890, 249042079, 498084158, 1245210395, 2490420790]

約数ペア:

[(1, 2490420790), (2, 1245210395), (5, 498084158), (10, 249042079), (11, 226401890), (13, 191570830), (22, 113200945), (26, 95785415), (37, 67308670), (55, 45280378), (65, 38314166), (74, 33654335), (110, 22640189), (121, 20581990), (130, 19157083), (143, 17415530), (185, 13461734), (242, 10290995), (286, 8707765), (370, 6730867), (389, 6402110), (407, 6118970), (481, 5177590), (605, 4116398), (715, 3483106), (778, 3201055), (814, 3059485), (962, 2588795), (1210, 2058199), (1331, 1871090), (1430, 1741553), (1573, 1583230), (1945, 1280422), (2035, 1223794), (2405, 1035518), (2662, 935545), (3146, 791615), (3890, 640211), (4070, 611897), (4279, 582010), (4477, 556270), (4810, 517759), (5057, 492470), (5291, 470690), (6655, 374218), (7865, 316646), (8558, 291005), (8954, 278135), (10114, 246235), (10582, 235345), (13310, 187109), (14393, 173030), (15730, 158323), (17303, 143930), (21395, 116402), (22385, 111254), (25285, 98494), (26455, 94138), (28786, 86515), (34606, 71965), (42790, 58201), (44770, 55627), (47069, 52910), (49247, 50570)]