18131960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2$

素因数の和:94

約数の個数: 144

約数和(自身を含む): 53618760

約数和(自身を除く): 35486800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 29, 35, 40, 44, 49, 55, 56, 58, 70, 77, 88, 98, 110, 116, 140, 145, 154, 196, 203, 220, 232, 245, 280, 290, 308, 319, 385, 392, 406, 440, 490, 539, 580, 616, 638, 770, 812, 841, 980, 1015, 1078, 1160, 1276, 1421, 1540, 1595, 1624, 1682, 1960, 2030, 2156, 2233, 2552, 2695, 2842, 3080, 3190, 3364, 4060, 4205, 4312, 4466, 5390, 5684, 5887, 6380, 6728, 7105, 8120, 8410, 8932, 9251, 10780, 11165, 11368, 11774, 12760, 14210, 15631, 16820, 17864, 18502, 21560, 22330, 23548, 28420, 29435, 31262, 33640, 37004, 41209, 44660, 46255, 47096, 56840, 58870, 62524, 64757, 74008, 78155, 82418, 89320, 92510, 117740, 125048, 129514, 156310, 164836, 185020, 206045, 235480, 259028, 312620, 323785, 329672, 370040, 412090, 453299, 518056, 625240, 647570, 824180, 906598, 1295140, 1648360, 1813196, 2266495, 2590280, 3626392, 4532990, 9065980, 18131960]

約数ペア:

[(1, 18131960), (2, 9065980), (4, 4532990), (5, 3626392), (7, 2590280), (8, 2266495), (10, 1813196), (11, 1648360), (14, 1295140), (20, 906598), (22, 824180), (28, 647570), (29, 625240), (35, 518056), (40, 453299), (44, 412090), (49, 370040), (55, 329672), (56, 323785), (58, 312620), (70, 259028), (77, 235480), (88, 206045), (98, 185020), (110, 164836), (116, 156310), (140, 129514), (145, 125048), (154, 117740), (196, 92510), (203, 89320), (220, 82418), (232, 78155), (245, 74008), (280, 64757), (290, 62524), (308, 58870), (319, 56840), (385, 47096), (392, 46255), (406, 44660), (440, 41209), (490, 37004), (539, 33640), (580, 31262), (616, 29435), (638, 28420), (770, 23548), (812, 22330), (841, 21560), (980, 18502), (1015, 17864), (1078, 16820), (1160, 15631), (1276, 14210), (1421, 12760), (1540, 11774), (1595, 11368), (1624, 11165), (1682, 10780), (1960, 9251), (2030, 8932), (2156, 8410), (2233, 8120), (2552, 7105), (2695, 6728), (2842, 6380), (3080, 5887), (3190, 5684), (3364, 5390), (4060, 4466), (4205, 4312)]