1538140640

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:305

約数の個数: 192

約数和(自身を含む): 3982970880

約数和(自身を除く): 2444830240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 80, 92, 97, 115, 124, 139, 155, 160, 184, 194, 230, 248, 278, 310, 368, 388, 460, 485, 496, 556, 620, 695, 713, 736, 776, 920, 970, 992, 1112, 1240, 1390, 1426, 1552, 1840, 1940, 2224, 2231, 2480, 2780, 2852, 3007, 3104, 3197, 3565, 3680, 3880, 4309, 4448, 4462, 4960, 5560, 5704, 6014, 6394, 7130, 7760, 8618, 8924, 11120, 11155, 11408, 12028, 12788, 13483, 14260, 15035, 15520, 15985, 17236, 17848, 21545, 22240, 22310, 22816, 24056, 25576, 26966, 28520, 30070, 31970, 34472, 35696, 43090, 44620, 48112, 51152, 53932, 57040, 60140, 63940, 67415, 68944, 69161, 71392, 86180, 89240, 96224, 99107, 102304, 107864, 114080, 120280, 127880, 134830, 137888, 138322, 172360, 178480, 198214, 215728, 240560, 255760, 269660, 276644, 310109, 344720, 345805, 356960, 396428, 417973, 431456, 481120, 495535, 511520, 539320, 553288, 620218, 689440, 691610, 792856, 835946, 991070, 1078640, 1106576, 1240436, 1383220, 1550545, 1585712, 1671892, 1982140, 2089865, 2157280, 2213152, 2480872, 2766440, 3101090, 3171424, 3343784, 3964280, 4179730, 4961744, 5532880, 6202180, 6687568, 7928560, 8359460, 9613379, 9923488, 11065760, 12404360, 13375136, 15857120, 16718920, 19226758, 24808720, 33437840, 38453516, 48066895, 49617440, 66875680, 76907032, 96133790, 153814064, 192267580, 307628128, 384535160, 769070320, 1538140640]

約数ペア:

[(1, 1538140640), (2, 769070320), (4, 384535160), (5, 307628128), (8, 192267580), (10, 153814064), (16, 96133790), (20, 76907032), (23, 66875680), (31, 49617440), (32, 48066895), (40, 38453516), (46, 33437840), (62, 24808720), (80, 19226758), (92, 16718920), (97, 15857120), (115, 13375136), (124, 12404360), (139, 11065760), (155, 9923488), (160, 9613379), (184, 8359460), (194, 7928560), (230, 6687568), (248, 6202180), (278, 5532880), (310, 4961744), (368, 4179730), (388, 3964280), (460, 3343784), (485, 3171424), (496, 3101090), (556, 2766440), (620, 2480872), (695, 2213152), (713, 2157280), (736, 2089865), (776, 1982140), (920, 1671892), (970, 1585712), (992, 1550545), (1112, 1383220), (1240, 1240436), (1390, 1106576), (1426, 1078640), (1552, 991070), (1840, 835946), (1940, 792856), (2224, 691610), (2231, 689440), (2480, 620218), (2780, 553288), (2852, 539320), (3007, 511520), (3104, 495535), (3197, 481120), (3565, 431456), (3680, 417973), (3880, 396428), (4309, 356960), (4448, 345805), (4462, 344720), (4960, 310109), (5560, 276644), (5704, 269660), (6014, 255760), (6394, 240560), (7130, 215728), (7760, 198214), (8618, 178480), (8924, 172360), (11120, 138322), (11155, 137888), (11408, 134830), (12028, 127880), (12788, 120280), (13483, 114080), (14260, 107864), (15035, 102304), (15520, 99107), (15985, 96224), (17236, 89240), (17848, 86180), (21545, 71392), (22240, 69161), (22310, 68944), (22816, 67415), (24056, 63940), (25576, 60140), (26966, 57040), (28520, 53932), (30070, 51152), (31970, 48112), (34472, 44620), (35696, 43090)]