991215840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:525

約数の個数: 192

約数和(自身を含む): 3215419200

約数和(自身を除く): 2224203360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 80, 96, 97, 120, 122, 160, 183, 194, 240, 244, 291, 305, 349, 366, 388, 480, 485, 488, 582, 610, 698, 732, 776, 915, 970, 976, 1047, 1164, 1220, 1396, 1455, 1464, 1552, 1745, 1830, 1940, 1952, 2094, 2328, 2440, 2792, 2910, 2928, 3104, 3490, 3660, 3880, 4188, 4656, 4880, 5235, 5584, 5820, 5856, 5917, 6980, 7320, 7760, 8376, 9312, 9760, 10470, 11168, 11640, 11834, 13960, 14640, 15520, 16752, 17751, 20940, 21289, 23280, 23668, 27920, 29280, 29585, 33504, 33853, 35502, 41880, 42578, 46560, 47336, 55840, 59170, 63867, 67706, 71004, 83760, 85156, 88755, 94672, 101559, 106445, 118340, 127734, 135412, 142008, 167520, 169265, 170312, 177510, 189344, 203118, 212890, 236680, 255468, 270824, 284016, 319335, 338530, 340624, 355020, 406236, 425780, 473360, 507795, 510936, 541648, 568032, 638670, 677060, 681248, 710040, 812472, 851560, 946720, 1015590, 1021872, 1083296, 1277340, 1354120, 1420080, 1624944, 1703120, 2031180, 2043744, 2065033, 2554680, 2708240, 2840160, 3249888, 3406240, 4062360, 4130066, 5109360, 5416480, 6195099, 8124720, 8260132, 10218720, 10325165, 12390198, 16249440, 16520264, 20650330, 24780396, 30975495, 33040528, 41300660, 49560792, 61950990, 66081056, 82601320, 99121584, 123901980, 165202640, 198243168, 247803960, 330405280, 495607920, 991215840]

約数ペア:

[(1, 991215840), (2, 495607920), (3, 330405280), (4, 247803960), (5, 198243168), (6, 165202640), (8, 123901980), (10, 99121584), (12, 82601320), (15, 66081056), (16, 61950990), (20, 49560792), (24, 41300660), (30, 33040528), (32, 30975495), (40, 24780396), (48, 20650330), (60, 16520264), (61, 16249440), (80, 12390198), (96, 10325165), (97, 10218720), (120, 8260132), (122, 8124720), (160, 6195099), (183, 5416480), (194, 5109360), (240, 4130066), (244, 4062360), (291, 3406240), (305, 3249888), (349, 2840160), (366, 2708240), (388, 2554680), (480, 2065033), (485, 2043744), (488, 2031180), (582, 1703120), (610, 1624944), (698, 1420080), (732, 1354120), (776, 1277340), (915, 1083296), (970, 1021872), (976, 1015590), (1047, 946720), (1164, 851560), (1220, 812472), (1396, 710040), (1455, 681248), (1464, 677060), (1552, 638670), (1745, 568032), (1830, 541648), (1940, 510936), (1952, 507795), (2094, 473360), (2328, 425780), (2440, 406236), (2792, 355020), (2910, 340624), (2928, 338530), (3104, 319335), (3490, 284016), (3660, 270824), (3880, 255468), (4188, 236680), (4656, 212890), (4880, 203118), (5235, 189344), (5584, 177510), (5820, 170312), (5856, 169265), (5917, 167520), (6980, 142008), (7320, 135412), (7760, 127734), (8376, 118340), (9312, 106445), (9760, 101559), (10470, 94672), (11168, 88755), (11640, 85156), (11834, 83760), (13960, 71004), (14640, 67706), (15520, 63867), (16752, 59170), (17751, 55840), (20940, 47336), (21289, 46560), (23280, 42578), (23668, 41880), (27920, 35502), (29280, 33853), (29585, 33504)]