18987210

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2131}}^1$

素因数の和:2161

約数の個数: 80

約数和(自身を含む): 55721952

約数和(自身を除く): 36734742

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 81, 90, 99, 110, 135, 162, 165, 198, 270, 297, 330, 405, 495, 594, 810, 891, 990, 1485, 1782, 2131, 2970, 4262, 4455, 6393, 8910, 10655, 12786, 19179, 21310, 23441, 31965, 38358, 46882, 57537, 63930, 70323, 95895, 115074, 117205, 140646, 172611, 191790, 210969, 234410, 287685, 345222, 351615, 421938, 575370, 632907, 703230, 863055, 1054845, 1265814, 1726110, 1898721, 2109690, 3164535, 3797442, 6329070, 9493605, 18987210]

約数ペア:

[(1, 18987210), (2, 9493605), (3, 6329070), (5, 3797442), (6, 3164535), (9, 2109690), (10, 1898721), (11, 1726110), (15, 1265814), (18, 1054845), (22, 863055), (27, 703230), (30, 632907), (33, 575370), (45, 421938), (54, 351615), (55, 345222), (66, 287685), (81, 234410), (90, 210969), (99, 191790), (110, 172611), (135, 140646), (162, 117205), (165, 115074), (198, 95895), (270, 70323), (297, 63930), (330, 57537), (405, 46882), (495, 38358), (594, 31965), (810, 23441), (891, 21310), (990, 19179), (1485, 12786), (1782, 10655), (2131, 8910), (2970, 6393), (4262, 4455)]