217551180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{31}}^2$

素因数の和:106

約数の個数: 288

約数和(自身を含む): 800755200

約数和(自身を除く): 583204020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 31, 33, 35, 42, 44, 49, 55, 60, 62, 66, 70, 77, 84, 93, 98, 105, 110, 124, 132, 140, 147, 154, 155, 165, 186, 196, 210, 217, 220, 231, 245, 294, 308, 310, 330, 341, 343, 372, 385, 420, 434, 462, 465, 490, 539, 588, 620, 651, 660, 682, 686, 735, 770, 868, 924, 930, 961, 980, 1023, 1029, 1078, 1085, 1155, 1302, 1364, 1372, 1470, 1519, 1540, 1617, 1705, 1715, 1860, 1922, 2046, 2058, 2156, 2170, 2310, 2387, 2604, 2695, 2883, 2940, 3038, 3234, 3255, 3410, 3430, 3773, 3844, 4092, 4116, 4340, 4557, 4620, 4774, 4805, 5115, 5145, 5390, 5766, 6076, 6468, 6510, 6727, 6820, 6860, 7161, 7546, 7595, 8085, 9114, 9548, 9610, 10230, 10290, 10571, 10633, 10780, 11319, 11532, 11935, 13020, 13454, 14322, 14415, 15092, 15190, 16170, 16709, 18228, 18865, 19220, 20181, 20460, 20580, 21142, 21266, 22638, 22785, 23870, 26908, 28644, 28830, 30380, 31713, 31899, 32340, 33418, 33635, 35805, 37730, 40362, 42284, 42532, 45276, 45570, 47089, 47740, 50127, 52855, 53165, 56595, 57660, 63426, 63798, 66836, 67270, 71610, 73997, 75460, 80724, 83545, 91140, 94178, 100254, 100905, 105710, 106330, 113190, 116963, 126852, 127596, 134540, 141267, 143220, 147994, 158565, 159495, 167090, 188356, 200508, 201810, 211420, 212660, 221991, 226380, 233926, 235445, 250635, 282534, 295988, 317130, 318990, 329623, 334180, 350889, 369985, 403620, 443982, 467852, 470890, 501270, 517979, 565068, 584815, 634260, 637980, 659246, 701778, 706335, 739970, 887964, 941780, 988869, 1002540, 1035958, 1109955, 1169630, 1318492, 1403556, 1412670, 1479940, 1553937, 1648115, 1754445, 1977738, 2071916, 2219910, 2339260, 2589895, 2825340, 3107874, 3296230, 3508890, 3625853, 3955476, 4439820, 4944345, 5179790, 6215748, 6592460, 7017780, 7251706, 7769685, 9888690, 10359580, 10877559, 14503412, 15539370, 18129265, 19777380, 21755118, 31078740, 36258530, 43510236, 54387795, 72517060, 108775590, 217551180]

約数ペア:

[(1, 217551180), (2, 108775590), (3, 72517060), (4, 54387795), (5, 43510236), (6, 36258530), (7, 31078740), (10, 21755118), (11, 19777380), (12, 18129265), (14, 15539370), (15, 14503412), (20, 10877559), (21, 10359580), (22, 9888690), (28, 7769685), (30, 7251706), (31, 7017780), (33, 6592460), (35, 6215748), (42, 5179790), (44, 4944345), (49, 4439820), (55, 3955476), (60, 3625853), (62, 3508890), (66, 3296230), (70, 3107874), (77, 2825340), (84, 2589895), (93, 2339260), (98, 2219910), (105, 2071916), (110, 1977738), (124, 1754445), (132, 1648115), (140, 1553937), (147, 1479940), (154, 1412670), (155, 1403556), (165, 1318492), (186, 1169630), (196, 1109955), (210, 1035958), (217, 1002540), (220, 988869), (231, 941780), (245, 887964), (294, 739970), (308, 706335), (310, 701778), (330, 659246), (341, 637980), (343, 634260), (372, 584815), (385, 565068), (420, 517979), (434, 501270), (462, 470890), (465, 467852), (490, 443982), (539, 403620), (588, 369985), (620, 350889), (651, 334180), (660, 329623), (682, 318990), (686, 317130), (735, 295988), (770, 282534), (868, 250635), (924, 235445), (930, 233926), (961, 226380), (980, 221991), (1023, 212660), (1029, 211420), (1078, 201810), (1085, 200508), (1155, 188356), (1302, 167090), (1364, 159495), (1372, 158565), (1470, 147994), (1519, 143220), (1540, 141267), (1617, 134540), (1705, 127596), (1715, 126852), (1860, 116963), (1922, 113190), (2046, 106330), (2058, 105710), (2156, 100905), (2170, 100254), (2310, 94178), (2387, 91140), (2604, 83545), (2695, 80724), (2883, 75460), (2940, 73997), (3038, 71610), (3234, 67270), (3255, 66836), (3410, 63798), (3430, 63426), (3773, 57660), (3844, 56595), (4092, 53165), (4116, 52855), (4340, 50127), (4557, 47740), (4620, 47089), (4774, 45570), (4805, 45276), (5115, 42532), (5145, 42284), (5390, 40362), (5766, 37730), (6076, 35805), (6468, 33635), (6510, 33418), (6727, 32340), (6820, 31899), (6860, 31713), (7161, 30380), (7546, 28830), (7595, 28644), (8085, 26908), (9114, 23870), (9548, 22785), (9610, 22638), (10230, 21266), (10290, 21142), (10571, 20580), (10633, 20460), (10780, 20181), (11319, 19220), (11532, 18865), (11935, 18228), (13020, 16709), (13454, 16170), (14322, 15190), (14415, 15092)]