77455780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{643}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 172025280

約数和(自身を除く): 94569500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 317, 380, 634, 643, 1268, 1286, 1585, 2572, 3170, 3215, 6023, 6340, 6430, 12046, 12217, 12860, 24092, 24434, 30115, 48868, 60230, 61085, 120460, 122170, 203831, 244340, 407662, 815324, 1019155, 2038310, 3872789, 4076620, 7745578, 15491156, 19363945, 38727890, 77455780]

約数ペア:

[(1, 77455780), (2, 38727890), (4, 19363945), (5, 15491156), (10, 7745578), (19, 4076620), (20, 3872789), (38, 2038310), (76, 1019155), (95, 815324), (190, 407662), (317, 244340), (380, 203831), (634, 122170), (643, 120460), (1268, 61085), (1286, 60230), (1585, 48868), (2572, 30115), (3170, 24434), (3215, 24092), (6023, 12860), (6340, 12217), (6430, 12046)]