77817760

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3499}}^1$

素因数の和:3653

約数の個数: 48

約数和(自身を含む): 185220000

約数和(自身を除く): 107402240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 2224, 2780, 3499, 4448, 5560, 6998, 11120, 13996, 17495, 22240, 27992, 34990, 55984, 69980, 111968, 139960, 279920, 486361, 559840, 972722, 1945444, 2431805, 3890888, 4863610, 7781776, 9727220, 15563552, 19454440, 38908880, 77817760]

約数ペア:

[(1, 77817760), (2, 38908880), (4, 19454440), (5, 15563552), (8, 9727220), (10, 7781776), (16, 4863610), (20, 3890888), (32, 2431805), (40, 1945444), (80, 972722), (139, 559840), (160, 486361), (278, 279920), (556, 139960), (695, 111968), (1112, 69980), (1390, 55984), (2224, 34990), (2780, 27992), (3499, 22240), (4448, 17495), (5560, 13996), (6998, 11120)]