81010240

素因数分解:

$2^6\times 5^1\times {\mathrm{253157}}^1$

素因数の和:253174

約数の個数: 28

約数和(自身を含む): 192906396

約数和(自身を除く): 111896156

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 253157, 506314, 1012628, 1265785, 2025256, 2531570, 4050512, 5063140, 8101024, 10126280, 16202048, 20252560, 40505120, 81010240]

約数ペア:

[(1, 81010240), (2, 40505120), (4, 20252560), (5, 16202048), (8, 10126280), (10, 8101024), (16, 5063140), (20, 4050512), (32, 2531570), (40, 2025256), (64, 1265785), (80, 1012628), (160, 506314), (320, 253157)]