81997380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{151847}}^1$

素因数の和:151865

約数の個数: 48

約数和(自身を含む): 255104640

約数和(自身を除く): 173107260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 151847, 303694, 455541, 607388, 759235, 911082, 1366623, 1518470, 1822164, 2277705, 2733246, 3036940, 4099869, 4555410, 5466492, 6833115, 8199738, 9110820, 13666230, 16399476, 20499345, 27332460, 40998690, 81997380]

約数ペア:

[(1, 81997380), (2, 40998690), (3, 27332460), (4, 20499345), (5, 16399476), (6, 13666230), (9, 9110820), (10, 8199738), (12, 6833115), (15, 5466492), (18, 4555410), (20, 4099869), (27, 3036940), (30, 2733246), (36, 2277705), (45, 1822164), (54, 1518470), (60, 1366623), (90, 911082), (108, 759235), (135, 607388), (180, 455541), (270, 303694), (540, 151847)]