18129990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1871}}^1$

素因数の和:1917

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 30392250

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 19, 30, 34, 38, 51, 57, 85, 95, 102, 114, 170, 190, 255, 285, 323, 510, 570, 646, 969, 1615, 1871, 1938, 3230, 3742, 4845, 5613, 9355, 9690, 11226, 18710, 28065, 31807, 35549, 56130, 63614, 71098, 95421, 106647, 159035, 177745, 190842, 213294, 318070, 355490, 477105, 533235, 604333, 954210, 1066470, 1208666, 1812999, 3021665, 3625998, 6043330, 9064995, 18129990]

約数ペア:

[(1, 18129990), (2, 9064995), (3, 6043330), (5, 3625998), (6, 3021665), (10, 1812999), (15, 1208666), (17, 1066470), (19, 954210), (30, 604333), (34, 533235), (38, 477105), (51, 355490), (57, 318070), (85, 213294), (95, 190842), (102, 177745), (114, 159035), (170, 106647), (190, 95421), (255, 71098), (285, 63614), (323, 56130), (510, 35549), (570, 31807), (646, 28065), (969, 18710), (1615, 11226), (1871, 9690), (1938, 9355), (3230, 5613), (3742, 4845)]