18002775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 34712064

約数和(自身を除く): 16709289

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 53, 75, 105, 159, 175, 265, 371, 525, 647, 795, 1113, 1325, 1855, 1941, 3235, 3975, 4529, 5565, 9275, 9705, 13587, 16175, 22645, 27825, 34291, 48525, 67935, 102873, 113225, 171455, 240037, 339675, 514365, 720111, 857275, 1200185, 2571825, 3600555, 6000925, 18002775]

約数ペア:

[(1, 18002775), (3, 6000925), (5, 3600555), (7, 2571825), (15, 1200185), (21, 857275), (25, 720111), (35, 514365), (53, 339675), (75, 240037), (105, 171455), (159, 113225), (175, 102873), (265, 67935), (371, 48525), (525, 34291), (647, 27825), (795, 22645), (1113, 16175), (1325, 13587), (1855, 9705), (1941, 9275), (3235, 5565), (3975, 4529)]