217355880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:560

約数の個数: 256

約数和(自身を含む): 816168960

約数和(自身を除く): 598813080

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, 465, 476, 491, 510, 527, 595, 620, 651, 680, 714, 744, 840, 868, 930, 952, 982, 1020, 1054, 1085, 1190, 1240, 1302, 1428, 1473, 1581, 1736, 1785, 1860, 1964, 2040, 2108, 2170, 2380, 2455, 2604, 2635, 2856, 2946, 3162, 3255, 3437, 3570, 3689, 3720, 3928, 4216, 4340, 4760, 4910, 5208, 5270, 5892, 6324, 6510, 6874, 7140, 7365, 7378, 7905, 8347, 8680, 9820, 10311, 10540, 11067, 11784, 12648, 13020, 13748, 14280, 14730, 14756, 15221, 15810, 16694, 17185, 18445, 19640, 20622, 21080, 22134, 25041, 26040, 27496, 29460, 29512, 30442, 31620, 33388, 34370, 36890, 41244, 41735, 44268, 45663, 50082, 51555, 55335, 58429, 58920, 60884, 63240, 66776, 68740, 73780, 76105, 82488, 83470, 88536, 91326, 100164, 103110, 106547, 110670, 116858, 121768, 125205, 137480, 147560, 152210, 166940, 175287, 182652, 200328, 206220, 213094, 221340, 228315, 233716, 250410, 258757, 292145, 304420, 319641, 333880, 350574, 365304, 412440, 426188, 442680, 456630, 467432, 500820, 517514, 532735, 584290, 608840, 639282, 701148, 776271, 852376, 876435, 913260, 1001640, 1035028, 1065470, 1168580, 1278564, 1293785, 1402296, 1552542, 1598205, 1752870, 1811299, 1826520, 2070056, 2130940, 2337160, 2557128, 2587570, 3105084, 3196410, 3505740, 3622598, 3881355, 4261880, 5175140, 5433897, 6210168, 6392820, 7011480, 7245196, 7762710, 9056495, 10350280, 10867794, 12785640, 14490392, 15525420, 18112990, 21735588, 27169485, 31050840, 36225980, 43471176, 54338970, 72451960, 108677940, 217355880]

約数ペア:

[(1, 217355880), (2, 108677940), (3, 72451960), (4, 54338970), (5, 43471176), (6, 36225980), (7, 31050840), (8, 27169485), (10, 21735588), (12, 18112990), (14, 15525420), (15, 14490392), (17, 12785640), (20, 10867794), (21, 10350280), (24, 9056495), (28, 7762710), (30, 7245196), (31, 7011480), (34, 6392820), (35, 6210168), (40, 5433897), (42, 5175140), (51, 4261880), (56, 3881355), (60, 3622598), (62, 3505740), (68, 3196410), (70, 3105084), (84, 2587570), (85, 2557128), (93, 2337160), (102, 2130940), (105, 2070056), (119, 1826520), (120, 1811299), (124, 1752870), (136, 1598205), (140, 1552542), (155, 1402296), (168, 1293785), (170, 1278564), (186, 1168580), (204, 1065470), (210, 1035028), (217, 1001640), (238, 913260), (248, 876435), (255, 852376), (280, 776271), (310, 701148), (340, 639282), (357, 608840), (372, 584290), (408, 532735), (420, 517514), (434, 500820), (465, 467432), (476, 456630), (491, 442680), (510, 426188), (527, 412440), (595, 365304), (620, 350574), (651, 333880), (680, 319641), (714, 304420), (744, 292145), (840, 258757), (868, 250410), (930, 233716), (952, 228315), (982, 221340), (1020, 213094), (1054, 206220), (1085, 200328), (1190, 182652), (1240, 175287), (1302, 166940), (1428, 152210), (1473, 147560), (1581, 137480), (1736, 125205), (1785, 121768), (1860, 116858), (1964, 110670), (2040, 106547), (2108, 103110), (2170, 100164), (2380, 91326), (2455, 88536), (2604, 83470), (2635, 82488), (2856, 76105), (2946, 73780), (3162, 68740), (3255, 66776), (3437, 63240), (3570, 60884), (3689, 58920), (3720, 58429), (3928, 55335), (4216, 51555), (4340, 50082), (4760, 45663), (4910, 44268), (5208, 41735), (5270, 41244), (5892, 36890), (6324, 34370), (6510, 33388), (6874, 31620), (7140, 30442), (7365, 29512), (7378, 29460), (7905, 27496), (8347, 26040), (8680, 25041), (9820, 22134), (10311, 21080), (10540, 20622), (11067, 19640), (11784, 18445), (12648, 17185), (13020, 16694), (13748, 15810), (14280, 15221), (14730, 14756)]