20199511280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1\times {\mathrm{701}}^1$

素因数の和:1099

約数の個数: 160

約数和(自身を含む): 51330464640

約数和(自身を除く): 31130953360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 103, 104, 130, 206, 208, 260, 269, 412, 515, 520, 538, 701, 824, 1030, 1040, 1076, 1339, 1345, 1402, 1648, 2060, 2152, 2678, 2690, 2804, 3497, 3505, 4120, 4304, 5356, 5380, 5608, 6695, 6994, 7010, 8240, 9113, 10712, 10760, 11216, 13390, 13988, 14020, 17485, 18226, 21424, 21520, 26780, 27707, 27976, 28040, 34970, 36452, 45565, 53560, 55414, 55952, 56080, 69940, 72203, 72904, 91130, 107120, 110828, 138535, 139880, 144406, 145808, 182260, 188569, 221656, 277070, 279760, 288812, 360191, 361015, 364520, 377138, 443312, 554140, 577624, 720382, 722030, 729040, 754276, 938639, 942845, 1108280, 1155248, 1440764, 1444060, 1508552, 1800955, 1877278, 1885690, 2216560, 2451397, 2881528, 2888120, 3017104, 3601910, 3754556, 3771380, 4693195, 4902794, 5763056, 5776240, 7203820, 7509112, 7542760, 9386390, 9805588, 12256985, 14407640, 15018224, 15085520, 18772780, 19422607, 19611176, 24513970, 28815280, 37545560, 38845214, 39222352, 49027940, 75091120, 77690428, 97113035, 98055880, 155380856, 194226070, 196111760, 252493891, 310761712, 388452140, 504987782, 776904280, 1009975564, 1262469455, 1553808560, 2019951128, 2524938910, 4039902256, 5049877820, 10099755640, 20199511280]

約数ペア:

[(1, 20199511280), (2, 10099755640), (4, 5049877820), (5, 4039902256), (8, 2524938910), (10, 2019951128), (13, 1553808560), (16, 1262469455), (20, 1009975564), (26, 776904280), (40, 504987782), (52, 388452140), (65, 310761712), (80, 252493891), (103, 196111760), (104, 194226070), (130, 155380856), (206, 98055880), (208, 97113035), (260, 77690428), (269, 75091120), (412, 49027940), (515, 39222352), (520, 38845214), (538, 37545560), (701, 28815280), (824, 24513970), (1030, 19611176), (1040, 19422607), (1076, 18772780), (1339, 15085520), (1345, 15018224), (1402, 14407640), (1648, 12256985), (2060, 9805588), (2152, 9386390), (2678, 7542760), (2690, 7509112), (2804, 7203820), (3497, 5776240), (3505, 5763056), (4120, 4902794), (4304, 4693195), (5356, 3771380), (5380, 3754556), (5608, 3601910), (6695, 3017104), (6994, 2888120), (7010, 2881528), (8240, 2451397), (9113, 2216560), (10712, 1885690), (10760, 1877278), (11216, 1800955), (13390, 1508552), (13988, 1444060), (14020, 1440764), (17485, 1155248), (18226, 1108280), (21424, 942845), (21520, 938639), (26780, 754276), (27707, 729040), (27976, 722030), (28040, 720382), (34970, 577624), (36452, 554140), (45565, 443312), (53560, 377138), (55414, 364520), (55952, 361015), (56080, 360191), (69940, 288812), (72203, 279760), (72904, 277070), (91130, 221656), (107120, 188569), (110828, 182260), (138535, 145808), (139880, 144406)]