204960840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:532

約数の個数: 256

約数和(自身を含む): 769720320

約数和(自身を除く): 564759480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 31, 34, 35, 40, 42, 51, 56, 60, 62, 68, 70, 84, 85, 93, 102, 105, 119, 120, 124, 136, 140, 155, 168, 170, 186, 204, 210, 217, 238, 248, 255, 280, 310, 340, 357, 372, 408, 420, 434, 463, 465, 476, 510, 527, 595, 620, 651, 680, 714, 744, 840, 868, 926, 930, 952, 1020, 1054, 1085, 1190, 1240, 1302, 1389, 1428, 1581, 1736, 1785, 1852, 1860, 2040, 2108, 2170, 2315, 2380, 2604, 2635, 2778, 2856, 3162, 3241, 3255, 3570, 3689, 3704, 3720, 4216, 4340, 4630, 4760, 5208, 5270, 5556, 6324, 6482, 6510, 6945, 7140, 7378, 7871, 7905, 8680, 9260, 9723, 10540, 11067, 11112, 12648, 12964, 13020, 13890, 14280, 14353, 14756, 15742, 15810, 16205, 18445, 18520, 19446, 21080, 22134, 23613, 25928, 26040, 27780, 28706, 29512, 31484, 31620, 32410, 36890, 38892, 39355, 43059, 44268, 47226, 48615, 55097, 55335, 55560, 57412, 62968, 63240, 64820, 71765, 73780, 77784, 78710, 86118, 88536, 94452, 97230, 100471, 110194, 110670, 114824, 118065, 129640, 143530, 147560, 157420, 165291, 172236, 188904, 194460, 200942, 215295, 220388, 221340, 236130, 244001, 275485, 287060, 301413, 314840, 330582, 344472, 388920, 401884, 430590, 440776, 442680, 472260, 488002, 502355, 550970, 574120, 602826, 661164, 732003, 803768, 826455, 861180, 944520, 976004, 1004710, 1101940, 1205652, 1220005, 1322328, 1464006, 1507065, 1652910, 1708007, 1722360, 1952008, 2009420, 2203880, 2411304, 2440010, 2928012, 3014130, 3305820, 3416014, 3660015, 4018840, 4880020, 5124021, 5856024, 6028260, 6611640, 6832028, 7320030, 8540035, 9760040, 10248042, 12056520, 13664056, 14640060, 17080070, 20496084, 25620105, 29280120, 34160140, 40992168, 51240210, 68320280, 102480420, 204960840]

約数ペア:

[(1, 204960840), (2, 102480420), (3, 68320280), (4, 51240210), (5, 40992168), (6, 34160140), (7, 29280120), (8, 25620105), (10, 20496084), (12, 17080070), (14, 14640060), (15, 13664056), (17, 12056520), (20, 10248042), (21, 9760040), (24, 8540035), (28, 7320030), (30, 6832028), (31, 6611640), (34, 6028260), (35, 5856024), (40, 5124021), (42, 4880020), (51, 4018840), (56, 3660015), (60, 3416014), (62, 3305820), (68, 3014130), (70, 2928012), (84, 2440010), (85, 2411304), (93, 2203880), (102, 2009420), (105, 1952008), (119, 1722360), (120, 1708007), (124, 1652910), (136, 1507065), (140, 1464006), (155, 1322328), (168, 1220005), (170, 1205652), (186, 1101940), (204, 1004710), (210, 976004), (217, 944520), (238, 861180), (248, 826455), (255, 803768), (280, 732003), (310, 661164), (340, 602826), (357, 574120), (372, 550970), (408, 502355), (420, 488002), (434, 472260), (463, 442680), (465, 440776), (476, 430590), (510, 401884), (527, 388920), (595, 344472), (620, 330582), (651, 314840), (680, 301413), (714, 287060), (744, 275485), (840, 244001), (868, 236130), (926, 221340), (930, 220388), (952, 215295), (1020, 200942), (1054, 194460), (1085, 188904), (1190, 172236), (1240, 165291), (1302, 157420), (1389, 147560), (1428, 143530), (1581, 129640), (1736, 118065), (1785, 114824), (1852, 110670), (1860, 110194), (2040, 100471), (2108, 97230), (2170, 94452), (2315, 88536), (2380, 86118), (2604, 78710), (2635, 77784), (2778, 73780), (2856, 71765), (3162, 64820), (3241, 63240), (3255, 62968), (3570, 57412), (3689, 55560), (3704, 55335), (3720, 55097), (4216, 48615), (4340, 47226), (4630, 44268), (4760, 43059), (5208, 39355), (5270, 38892), (5556, 36890), (6324, 32410), (6482, 31620), (6510, 31484), (6945, 29512), (7140, 28706), (7378, 27780), (7871, 26040), (7905, 25928), (8680, 23613), (9260, 22134), (9723, 21080), (10540, 19446), (11067, 18520), (11112, 18445), (12648, 16205), (12964, 15810), (13020, 15742), (13890, 14756), (14280, 14353)]