81604080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:208

約数の個数: 240

約数和(自身を含む): 297704160

約数和(自身を除く): 216100080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 59, 60, 68, 72, 80, 85, 90, 102, 113, 118, 120, 136, 144, 153, 170, 177, 180, 204, 226, 236, 240, 255, 272, 295, 306, 339, 340, 354, 360, 408, 452, 472, 510, 531, 565, 590, 612, 678, 680, 708, 720, 765, 816, 885, 904, 944, 1003, 1017, 1020, 1062, 1130, 1180, 1224, 1356, 1360, 1416, 1530, 1695, 1770, 1808, 1921, 2006, 2034, 2040, 2124, 2260, 2360, 2448, 2655, 2712, 2832, 3009, 3060, 3390, 3540, 3842, 4012, 4068, 4080, 4248, 4520, 4720, 5015, 5085, 5310, 5424, 5763, 6018, 6120, 6667, 6780, 7080, 7684, 8024, 8136, 8496, 9027, 9040, 9605, 10030, 10170, 10620, 11526, 12036, 12240, 13334, 13560, 14160, 15045, 15368, 16048, 16272, 17289, 18054, 19210, 20001, 20060, 20340, 21240, 23052, 24072, 26668, 27120, 28815, 30090, 30736, 33335, 34578, 36108, 38420, 40002, 40120, 40680, 42480, 45135, 46104, 48144, 53336, 57630, 60003, 60180, 66670, 69156, 72216, 76840, 80004, 80240, 81360, 86445, 90270, 92208, 100005, 106672, 113339, 115260, 120006, 120360, 133340, 138312, 144432, 153680, 160008, 172890, 180540, 200010, 226678, 230520, 240012, 240720, 266680, 276624, 300015, 320016, 340017, 345780, 361080, 400020, 453356, 461040, 480024, 533360, 566695, 600030, 680034, 691560, 722160, 800040, 906712, 960048, 1020051, 1133390, 1200060, 1360068, 1383120, 1600080, 1700085, 1813424, 2040102, 2266780, 2400120, 2720136, 3400170, 4080204, 4533560, 4800240, 5100255, 5440272, 6800340, 8160408, 9067120, 10200510, 13600680, 16320816, 20401020, 27201360, 40802040, 81604080]

約数ペア:

[(1, 81604080), (2, 40802040), (3, 27201360), (4, 20401020), (5, 16320816), (6, 13600680), (8, 10200510), (9, 9067120), (10, 8160408), (12, 6800340), (15, 5440272), (16, 5100255), (17, 4800240), (18, 4533560), (20, 4080204), (24, 3400170), (30, 2720136), (34, 2400120), (36, 2266780), (40, 2040102), (45, 1813424), (48, 1700085), (51, 1600080), (59, 1383120), (60, 1360068), (68, 1200060), (72, 1133390), (80, 1020051), (85, 960048), (90, 906712), (102, 800040), (113, 722160), (118, 691560), (120, 680034), (136, 600030), (144, 566695), (153, 533360), (170, 480024), (177, 461040), (180, 453356), (204, 400020), (226, 361080), (236, 345780), (240, 340017), (255, 320016), (272, 300015), (295, 276624), (306, 266680), (339, 240720), (340, 240012), (354, 230520), (360, 226678), (408, 200010), (452, 180540), (472, 172890), (510, 160008), (531, 153680), (565, 144432), (590, 138312), (612, 133340), (678, 120360), (680, 120006), (708, 115260), (720, 113339), (765, 106672), (816, 100005), (885, 92208), (904, 90270), (944, 86445), (1003, 81360), (1017, 80240), (1020, 80004), (1062, 76840), (1130, 72216), (1180, 69156), (1224, 66670), (1356, 60180), (1360, 60003), (1416, 57630), (1530, 53336), (1695, 48144), (1770, 46104), (1808, 45135), (1921, 42480), (2006, 40680), (2034, 40120), (2040, 40002), (2124, 38420), (2260, 36108), (2360, 34578), (2448, 33335), (2655, 30736), (2712, 30090), (2832, 28815), (3009, 27120), (3060, 26668), (3390, 24072), (3540, 23052), (3842, 21240), (4012, 20340), (4068, 20060), (4080, 20001), (4248, 19210), (4520, 18054), (4720, 17289), (5015, 16272), (5085, 16048), (5310, 15368), (5424, 15045), (5763, 14160), (6018, 13560), (6120, 13334), (6667, 12240), (6780, 12036), (7080, 11526), (7684, 10620), (8024, 10170), (8136, 10030), (8496, 9605), (9027, 9040)]