1721070720

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{727}}^1$

素因数の和:892

約数の個数: 256

約数和(自身を含む): 6148396800

約数和(自身を除く): 4427326080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 137, 144, 160, 180, 192, 216, 240, 270, 274, 288, 320, 360, 384, 411, 432, 480, 540, 548, 576, 640, 685, 720, 727, 822, 864, 960, 1080, 1096, 1152, 1233, 1370, 1440, 1454, 1644, 1728, 1920, 2055, 2160, 2181, 2192, 2466, 2740, 2880, 2908, 3288, 3456, 3635, 3699, 4110, 4320, 4362, 4384, 4932, 5480, 5760, 5816, 6165, 6543, 6576, 7270, 7398, 8220, 8640, 8724, 8768, 9864, 10905, 10960, 11632, 12330, 13086, 13152, 14540, 14796, 16440, 17280, 17448, 17536, 18495, 19629, 19728, 21810, 21920, 23264, 24660, 26172, 26304, 29080, 29592, 32715, 32880, 34896, 36990, 39258, 39456, 43620, 43840, 46528, 49320, 52344, 52608, 58160, 59184, 65430, 65760, 69792, 73980, 78516, 78912, 87240, 87680, 93056, 98145, 98640, 99599, 104688, 116320, 118368, 130860, 131520, 139584, 147960, 157032, 157824, 174480, 196290, 197280, 199198, 209376, 232640, 236736, 261720, 263040, 279168, 295920, 298797, 314064, 348960, 392580, 394560, 398396, 418752, 465280, 473472, 497995, 523440, 591840, 597594, 628128, 697920, 785160, 789120, 796792, 837504, 896391, 995990, 1046880, 1183680, 1195188, 1256256, 1395840, 1493985, 1570320, 1593584, 1792782, 1991980, 2093760, 2367360, 2390376, 2512512, 2689173, 2987970, 3140640, 3187168, 3585564, 3983960, 4187520, 4481955, 4780752, 5378346, 5975940, 6281280, 6374336, 7171128, 7967920, 8963910, 9561504, 10756692, 11951880, 12562560, 12748672, 13445865, 14342256, 15935840, 17927820, 19123008, 21513384, 23903760, 26891730, 28684512, 31871680, 35855640, 38246016, 43026768, 47807520, 53783460, 57369024, 63743360, 71711280, 86053536, 95615040, 107566920, 114738048, 143422560, 172107072, 191230080, 215133840, 286845120, 344214144, 430267680, 573690240, 860535360, 1721070720]

約数ペア:

[(1, 1721070720), (2, 860535360), (3, 573690240), (4, 430267680), (5, 344214144), (6, 286845120), (8, 215133840), (9, 191230080), (10, 172107072), (12, 143422560), (15, 114738048), (16, 107566920), (18, 95615040), (20, 86053536), (24, 71711280), (27, 63743360), (30, 57369024), (32, 53783460), (36, 47807520), (40, 43026768), (45, 38246016), (48, 35855640), (54, 31871680), (60, 28684512), (64, 26891730), (72, 23903760), (80, 21513384), (90, 19123008), (96, 17927820), (108, 15935840), (120, 14342256), (128, 13445865), (135, 12748672), (137, 12562560), (144, 11951880), (160, 10756692), (180, 9561504), (192, 8963910), (216, 7967920), (240, 7171128), (270, 6374336), (274, 6281280), (288, 5975940), (320, 5378346), (360, 4780752), (384, 4481955), (411, 4187520), (432, 3983960), (480, 3585564), (540, 3187168), (548, 3140640), (576, 2987970), (640, 2689173), (685, 2512512), (720, 2390376), (727, 2367360), (822, 2093760), (864, 1991980), (960, 1792782), (1080, 1593584), (1096, 1570320), (1152, 1493985), (1233, 1395840), (1370, 1256256), (1440, 1195188), (1454, 1183680), (1644, 1046880), (1728, 995990), (1920, 896391), (2055, 837504), (2160, 796792), (2181, 789120), (2192, 785160), (2466, 697920), (2740, 628128), (2880, 597594), (2908, 591840), (3288, 523440), (3456, 497995), (3635, 473472), (3699, 465280), (4110, 418752), (4320, 398396), (4362, 394560), (4384, 392580), (4932, 348960), (5480, 314064), (5760, 298797), (5816, 295920), (6165, 279168), (6543, 263040), (6576, 261720), (7270, 236736), (7398, 232640), (8220, 209376), (8640, 199198), (8724, 197280), (8768, 196290), (9864, 174480), (10905, 157824), (10960, 157032), (11632, 147960), (12330, 139584), (13086, 131520), (13152, 130860), (14540, 118368), (14796, 116320), (16440, 104688), (17280, 99599), (17448, 98640), (17536, 98145), (18495, 93056), (19629, 87680), (19728, 87240), (21810, 78912), (21920, 78516), (23264, 73980), (24660, 69792), (26172, 65760), (26304, 65430), (29080, 59184), (29592, 58160), (32715, 52608), (32880, 52344), (34896, 49320), (36990, 46528), (39258, 43840), (39456, 43620)]