77321320

素因数分解:

$2^3\times 5^1\times {\mathrm{967}}^1\times {\mathrm{1999}}^1$

素因数の和:2977

約数の個数: 32

約数和(自身を含む): 174240000

約数和(自身を除く): 96918680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 967, 1934, 1999, 3868, 3998, 4835, 7736, 7996, 9670, 9995, 15992, 19340, 19990, 38680, 39980, 79960, 1933033, 3866066, 7732132, 9665165, 15464264, 19330330, 38660660, 77321320]

約数ペア:

[(1, 77321320), (2, 38660660), (4, 19330330), (5, 15464264), (8, 9665165), (10, 7732132), (20, 3866066), (40, 1933033), (967, 79960), (1934, 39980), (1999, 38680), (3868, 19990), (3998, 19340), (4835, 15992), (7736, 9995), (7996, 9670)]