1808481720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:1010

約数の個数: 192

約数和(自身を含む): 5860915200

約数和(自身を除く): 4052433480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 31, 40, 46, 60, 62, 69, 92, 93, 115, 120, 124, 138, 155, 184, 186, 230, 248, 276, 310, 345, 372, 460, 465, 529, 552, 620, 690, 713, 744, 919, 920, 930, 1058, 1240, 1380, 1426, 1587, 1838, 1860, 2116, 2139, 2645, 2757, 2760, 2852, 3174, 3565, 3676, 3720, 4232, 4278, 4595, 5290, 5514, 5704, 6348, 7130, 7352, 7935, 8556, 9190, 10580, 10695, 11028, 12696, 13785, 14260, 15870, 16399, 17112, 18380, 21137, 21160, 21390, 22056, 27570, 28489, 28520, 31740, 32798, 36760, 42274, 42780, 49197, 55140, 56978, 63411, 63480, 65596, 81995, 84548, 85467, 85560, 98394, 105685, 110280, 113956, 126822, 131192, 142445, 163990, 169096, 170934, 196788, 211370, 227912, 245985, 253644, 284890, 317055, 327980, 341868, 393576, 422740, 427335, 486151, 491970, 507288, 569780, 634110, 655247, 655960, 683736, 845480, 854670, 972302, 983940, 1139560, 1268220, 1310494, 1458453, 1709340, 1944604, 1965741, 1967880, 2430755, 2536440, 2620988, 2916906, 3276235, 3418680, 3889208, 3931482, 4861510, 5241976, 5833812, 6552470, 7292265, 7862964, 9723020, 9828705, 11667624, 13104940, 14584530, 15070681, 15725928, 19446040, 19657410, 26209880, 29169060, 30141362, 39314820, 45212043, 58338120, 60282724, 75353405, 78629640, 90424086, 120565448, 150706810, 180848172, 226060215, 301413620, 361696344, 452120430, 602827240, 904240860, 1808481720]

約数ペア:

[(1, 1808481720), (2, 904240860), (3, 602827240), (4, 452120430), (5, 361696344), (6, 301413620), (8, 226060215), (10, 180848172), (12, 150706810), (15, 120565448), (20, 90424086), (23, 78629640), (24, 75353405), (30, 60282724), (31, 58338120), (40, 45212043), (46, 39314820), (60, 30141362), (62, 29169060), (69, 26209880), (92, 19657410), (93, 19446040), (115, 15725928), (120, 15070681), (124, 14584530), (138, 13104940), (155, 11667624), (184, 9828705), (186, 9723020), (230, 7862964), (248, 7292265), (276, 6552470), (310, 5833812), (345, 5241976), (372, 4861510), (460, 3931482), (465, 3889208), (529, 3418680), (552, 3276235), (620, 2916906), (690, 2620988), (713, 2536440), (744, 2430755), (919, 1967880), (920, 1965741), (930, 1944604), (1058, 1709340), (1240, 1458453), (1380, 1310494), (1426, 1268220), (1587, 1139560), (1838, 983940), (1860, 972302), (2116, 854670), (2139, 845480), (2645, 683736), (2757, 655960), (2760, 655247), (2852, 634110), (3174, 569780), (3565, 507288), (3676, 491970), (3720, 486151), (4232, 427335), (4278, 422740), (4595, 393576), (5290, 341868), (5514, 327980), (5704, 317055), (6348, 284890), (7130, 253644), (7352, 245985), (7935, 227912), (8556, 211370), (9190, 196788), (10580, 170934), (10695, 169096), (11028, 163990), (12696, 142445), (13785, 131192), (14260, 126822), (15870, 113956), (16399, 110280), (17112, 105685), (18380, 98394), (21137, 85560), (21160, 85467), (21390, 84548), (22056, 81995), (27570, 65596), (28489, 63480), (28520, 63411), (31740, 56978), (32798, 55140), (36760, 49197), (42274, 42780)]