72245080

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4643}}^1$

素因数の和:5043

約数の個数: 32

約数和(自身を含む): 163004400

約数和(自身を除く): 90759320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 4643, 7780, 9286, 15560, 18572, 23215, 37144, 46430, 92860, 185720, 1806127, 3612254, 7224508, 9030635, 14449016, 18061270, 36122540, 72245080]

約数ペア:

[(1, 72245080), (2, 36122540), (4, 18061270), (5, 14449016), (8, 9030635), (10, 7224508), (20, 3612254), (40, 1806127), (389, 185720), (778, 92860), (1556, 46430), (1945, 37144), (3112, 23215), (3890, 18572), (4643, 15560), (7780, 9286)]