18729280

素因数分解:

$2^6\times 5^1\times {\mathrm{107}}^1\times {\mathrm{547}}^1$

素因数の和:671

約数の個数: 56

約数和(自身を含む): 45098208

約数和(自身を除く): 26368928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 107, 160, 214, 320, 428, 535, 547, 856, 1070, 1094, 1712, 2140, 2188, 2735, 3424, 4280, 4376, 5470, 6848, 8560, 8752, 10940, 17120, 17504, 21880, 34240, 35008, 43760, 58529, 87520, 117058, 175040, 234116, 292645, 468232, 585290, 936464, 1170580, 1872928, 2341160, 3745856, 4682320, 9364640, 18729280]

約数ペア:

[(1, 18729280), (2, 9364640), (4, 4682320), (5, 3745856), (8, 2341160), (10, 1872928), (16, 1170580), (20, 936464), (32, 585290), (40, 468232), (64, 292645), (80, 234116), (107, 175040), (160, 117058), (214, 87520), (320, 58529), (428, 43760), (535, 35008), (547, 34240), (856, 21880), (1070, 17504), (1094, 17120), (1712, 10940), (2140, 8752), (2188, 8560), (2735, 6848), (3424, 5470), (4280, 4376)]