55580840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{198503}}^1$

素因数の和:198521

約数の個数: 32

約数和(自身を含む): 142922880

約数和(自身を除く): 87342040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 198503, 397006, 794012, 992515, 1389521, 1588024, 1985030, 2779042, 3970060, 5558084, 6947605, 7940120, 11116168, 13895210, 27790420, 55580840]

約数ペア:

[(1, 55580840), (2, 27790420), (4, 13895210), (5, 11116168), (7, 7940120), (8, 6947605), (10, 5558084), (14, 3970060), (20, 2779042), (28, 1985030), (35, 1588024), (40, 1389521), (56, 992515), (70, 794012), (140, 397006), (280, 198503)]