87748020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{487489}}^1$

素因数の和:487504

約数の個数: 36

約数和(自身を含む): 266169540

約数和(自身を除く): 178421520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 487489, 974978, 1462467, 1949956, 2437445, 2924934, 4387401, 4874890, 5849868, 7312335, 8774802, 9749780, 14624670, 17549604, 21937005, 29249340, 43874010, 87748020]

約数ペア:

[(1, 87748020), (2, 43874010), (3, 29249340), (4, 21937005), (5, 17549604), (6, 14624670), (9, 9749780), (10, 8774802), (12, 7312335), (15, 5849868), (18, 4874890), (20, 4387401), (30, 2924934), (36, 2437445), (45, 1949956), (60, 1462467), (90, 974978), (180, 487489)]