90540400

素因数分解:

$2^4\times 5^2\times {\mathrm{461}}^1\times {\mathrm{491}}^1$

素因数の和:970

約数の個数: 60

約数和(自身を含む): 218439144

約数和(自身を除く): 127898744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 461, 491, 922, 982, 1844, 1964, 2305, 2455, 3688, 3928, 4610, 4910, 7376, 7856, 9220, 9820, 11525, 12275, 18440, 19640, 23050, 24550, 36880, 39280, 46100, 49100, 92200, 98200, 184400, 196400, 226351, 452702, 905404, 1131755, 1810808, 2263510, 3621616, 4527020, 5658775, 9054040, 11317550, 18108080, 22635100, 45270200, 90540400]

約数ペア:

[(1, 90540400), (2, 45270200), (4, 22635100), (5, 18108080), (8, 11317550), (10, 9054040), (16, 5658775), (20, 4527020), (25, 3621616), (40, 2263510), (50, 1810808), (80, 1131755), (100, 905404), (200, 452702), (400, 226351), (461, 196400), (491, 184400), (922, 98200), (982, 92200), (1844, 49100), (1964, 46100), (2305, 39280), (2455, 36880), (3688, 24550), (3928, 23050), (4610, 19640), (4910, 18440), (7376, 12275), (7856, 11525), (9220, 9820)]