171890180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:250

約数の個数: 144

約数和(自身を含む): 462967680

約数和(自身を除く): 291077500

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 73, 77, 110, 121, 139, 140, 146, 154, 220, 242, 278, 292, 308, 365, 385, 484, 511, 556, 605, 695, 730, 770, 803, 847, 973, 1022, 1210, 1390, 1460, 1529, 1540, 1606, 1694, 1946, 2044, 2420, 2555, 2780, 3058, 3212, 3388, 3892, 4015, 4235, 4865, 5110, 5621, 6116, 7645, 8030, 8470, 8833, 9730, 10147, 10220, 10703, 11242, 15290, 16060, 16819, 16940, 17666, 19460, 20294, 21406, 22484, 28105, 30580, 33638, 35332, 40588, 42812, 44165, 50735, 53515, 56210, 61831, 67276, 71029, 84095, 88330, 101470, 107030, 111617, 112420, 117733, 123662, 142058, 168190, 176660, 202940, 214060, 223234, 235466, 247324, 284116, 309155, 336380, 355145, 446468, 470932, 558085, 588665, 618310, 710290, 781319, 1116170, 1177330, 1227787, 1236620, 1420580, 1562638, 2232340, 2354660, 2455574, 3125276, 3906595, 4911148, 6138935, 7813190, 8594509, 12277870, 15626380, 17189018, 24555740, 34378036, 42972545, 85945090, 171890180]

約数ペア:

[(1, 171890180), (2, 85945090), (4, 42972545), (5, 34378036), (7, 24555740), (10, 17189018), (11, 15626380), (14, 12277870), (20, 8594509), (22, 7813190), (28, 6138935), (35, 4911148), (44, 3906595), (55, 3125276), (70, 2455574), (73, 2354660), (77, 2232340), (110, 1562638), (121, 1420580), (139, 1236620), (140, 1227787), (146, 1177330), (154, 1116170), (220, 781319), (242, 710290), (278, 618310), (292, 588665), (308, 558085), (365, 470932), (385, 446468), (484, 355145), (511, 336380), (556, 309155), (605, 284116), (695, 247324), (730, 235466), (770, 223234), (803, 214060), (847, 202940), (973, 176660), (1022, 168190), (1210, 142058), (1390, 123662), (1460, 117733), (1529, 112420), (1540, 111617), (1606, 107030), (1694, 101470), (1946, 88330), (2044, 84095), (2420, 71029), (2555, 67276), (2780, 61831), (3058, 56210), (3212, 53515), (3388, 50735), (3892, 44165), (4015, 42812), (4235, 40588), (4865, 35332), (5110, 33638), (5621, 30580), (6116, 28105), (7645, 22484), (8030, 21406), (8470, 20294), (8833, 19460), (9730, 17666), (10147, 16940), (10220, 16819), (10703, 16060), (11242, 15290)]