81339840

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:547

約数の個数: 168

約数和(自身を含む): 284975808

約数和(自身を除く): 203635968

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 61, 64, 72, 80, 90, 96, 120, 122, 144, 160, 180, 183, 192, 240, 244, 288, 305, 320, 360, 366, 463, 480, 488, 549, 576, 610, 720, 732, 915, 926, 960, 976, 1098, 1220, 1389, 1440, 1464, 1830, 1852, 1952, 2196, 2315, 2440, 2745, 2778, 2880, 2928, 3660, 3704, 3904, 4167, 4392, 4630, 4880, 5490, 5556, 5856, 6945, 7320, 7408, 8334, 8784, 9260, 9760, 10980, 11112, 11712, 13890, 14640, 14816, 16668, 17568, 18520, 19520, 20835, 21960, 22224, 27780, 28243, 29280, 29632, 33336, 35136, 37040, 41670, 43920, 44448, 55560, 56486, 58560, 66672, 74080, 83340, 84729, 87840, 88896, 111120, 112972, 133344, 141215, 148160, 166680, 169458, 175680, 222240, 225944, 254187, 266688, 282430, 333360, 338916, 423645, 444480, 451888, 508374, 564860, 666720, 677832, 847290, 903776, 1016748, 1129720, 1270935, 1333440, 1355664, 1694580, 1807552, 2033496, 2259440, 2541870, 2711328, 3389160, 4066992, 4518880, 5083740, 5422656, 6778320, 8133984, 9037760, 10167480, 13556640, 16267968, 20334960, 27113280, 40669920, 81339840]

約数ペア:

[(1, 81339840), (2, 40669920), (3, 27113280), (4, 20334960), (5, 16267968), (6, 13556640), (8, 10167480), (9, 9037760), (10, 8133984), (12, 6778320), (15, 5422656), (16, 5083740), (18, 4518880), (20, 4066992), (24, 3389160), (30, 2711328), (32, 2541870), (36, 2259440), (40, 2033496), (45, 1807552), (48, 1694580), (60, 1355664), (61, 1333440), (64, 1270935), (72, 1129720), (80, 1016748), (90, 903776), (96, 847290), (120, 677832), (122, 666720), (144, 564860), (160, 508374), (180, 451888), (183, 444480), (192, 423645), (240, 338916), (244, 333360), (288, 282430), (305, 266688), (320, 254187), (360, 225944), (366, 222240), (463, 175680), (480, 169458), (488, 166680), (549, 148160), (576, 141215), (610, 133344), (720, 112972), (732, 111120), (915, 88896), (926, 87840), (960, 84729), (976, 83340), (1098, 74080), (1220, 66672), (1389, 58560), (1440, 56486), (1464, 55560), (1830, 44448), (1852, 43920), (1952, 41670), (2196, 37040), (2315, 35136), (2440, 33336), (2745, 29632), (2778, 29280), (2880, 28243), (2928, 27780), (3660, 22224), (3704, 21960), (3904, 20835), (4167, 19520), (4392, 18520), (4630, 17568), (4880, 16668), (5490, 14816), (5556, 14640), (5856, 13890), (6945, 11712), (7320, 11112), (7408, 10980), (8334, 9760), (8784, 9260)]