311983980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{877}}^1$

素因数の和:925

約数の個数: 216

約数和(自身を含む): 1118227824

約数和(自身を除く): 806243844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 98, 105, 110, 121, 132, 140, 147, 154, 165, 196, 210, 220, 231, 242, 245, 294, 308, 330, 363, 385, 420, 462, 484, 490, 539, 588, 605, 660, 726, 735, 770, 847, 877, 924, 980, 1078, 1155, 1210, 1452, 1470, 1540, 1617, 1694, 1754, 1815, 2156, 2310, 2420, 2541, 2631, 2695, 2940, 3234, 3388, 3508, 3630, 4235, 4385, 4620, 5082, 5262, 5390, 5929, 6139, 6468, 7260, 8085, 8470, 8770, 9647, 10164, 10524, 10780, 11858, 12278, 12705, 13155, 16170, 16940, 17540, 17787, 18417, 19294, 23716, 24556, 25410, 26310, 28941, 29645, 30695, 32340, 35574, 36834, 38588, 42973, 48235, 50820, 52620, 57882, 59290, 61390, 67529, 71148, 73668, 85946, 88935, 92085, 96470, 106117, 115764, 118580, 122780, 128919, 135058, 144705, 171892, 177870, 184170, 192940, 202587, 212234, 214865, 257838, 270116, 289410, 318351, 337645, 355740, 368340, 405174, 424468, 429730, 472703, 515676, 530585, 578820, 636702, 644595, 675290, 742819, 810348, 859460, 945406, 1012935, 1061170, 1273404, 1289190, 1350580, 1418109, 1485638, 1591755, 1890812, 2025870, 2122340, 2228457, 2363515, 2578380, 2836218, 2971276, 3183510, 3714095, 4051740, 4456914, 4727030, 5199733, 5672436, 6367020, 7090545, 7428190, 8913828, 9454060, 10399466, 11142285, 14181090, 14856380, 15599199, 20798932, 22284570, 25998665, 28362180, 31198398, 44569140, 51997330, 62396796, 77995995, 103994660, 155991990, 311983980]

約数ペア:

[(1, 311983980), (2, 155991990), (3, 103994660), (4, 77995995), (5, 62396796), (6, 51997330), (7, 44569140), (10, 31198398), (11, 28362180), (12, 25998665), (14, 22284570), (15, 20798932), (20, 15599199), (21, 14856380), (22, 14181090), (28, 11142285), (30, 10399466), (33, 9454060), (35, 8913828), (42, 7428190), (44, 7090545), (49, 6367020), (55, 5672436), (60, 5199733), (66, 4727030), (70, 4456914), (77, 4051740), (84, 3714095), (98, 3183510), (105, 2971276), (110, 2836218), (121, 2578380), (132, 2363515), (140, 2228457), (147, 2122340), (154, 2025870), (165, 1890812), (196, 1591755), (210, 1485638), (220, 1418109), (231, 1350580), (242, 1289190), (245, 1273404), (294, 1061170), (308, 1012935), (330, 945406), (363, 859460), (385, 810348), (420, 742819), (462, 675290), (484, 644595), (490, 636702), (539, 578820), (588, 530585), (605, 515676), (660, 472703), (726, 429730), (735, 424468), (770, 405174), (847, 368340), (877, 355740), (924, 337645), (980, 318351), (1078, 289410), (1155, 270116), (1210, 257838), (1452, 214865), (1470, 212234), (1540, 202587), (1617, 192940), (1694, 184170), (1754, 177870), (1815, 171892), (2156, 144705), (2310, 135058), (2420, 128919), (2541, 122780), (2631, 118580), (2695, 115764), (2940, 106117), (3234, 96470), (3388, 92085), (3508, 88935), (3630, 85946), (4235, 73668), (4385, 71148), (4620, 67529), (5082, 61390), (5262, 59290), (5390, 57882), (5929, 52620), (6139, 50820), (6468, 48235), (7260, 42973), (8085, 38588), (8470, 36834), (8770, 35574), (9647, 32340), (10164, 30695), (10524, 29645), (10780, 28941), (11858, 26310), (12278, 25410), (12705, 24556), (13155, 23716), (16170, 19294), (16940, 18417), (17540, 17787)]