78904420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{1511}}^1$

素因数の和:1900

約数の個数: 48

約数和(自身を含む): 190003968

約数和(自身を除く): 111099548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 373, 746, 1492, 1511, 1865, 2611, 3022, 3730, 5222, 6044, 7460, 7555, 10444, 10577, 13055, 15110, 21154, 26110, 30220, 42308, 52220, 52885, 105770, 211540, 563603, 1127206, 2254412, 2818015, 3945221, 5636030, 7890442, 11272060, 15780884, 19726105, 39452210, 78904420]

約数ペア:

[(1, 78904420), (2, 39452210), (4, 19726105), (5, 15780884), (7, 11272060), (10, 7890442), (14, 5636030), (20, 3945221), (28, 2818015), (35, 2254412), (70, 1127206), (140, 563603), (373, 211540), (746, 105770), (1492, 52885), (1511, 52220), (1865, 42308), (2611, 30220), (3022, 26110), (3730, 21154), (5222, 15110), (6044, 13055), (7460, 10577), (7555, 10444)]