155991800

素因数分解:

$2^3\times 5^2\times {\mathrm{643}}^1\times {\mathrm{1213}}^1$

素因数の和:1872

約数の個数: 48

約数和(自身を含む): 363544440

約数和(自身を除く): 207552640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 643, 1213, 1286, 2426, 2572, 3215, 4852, 5144, 6065, 6430, 9704, 12130, 12860, 16075, 24260, 25720, 30325, 32150, 48520, 60650, 64300, 121300, 128600, 242600, 779959, 1559918, 3119836, 3899795, 6239672, 7799590, 15599180, 19498975, 31198360, 38997950, 77995900, 155991800]

約数ペア:

[(1, 155991800), (2, 77995900), (4, 38997950), (5, 31198360), (8, 19498975), (10, 15599180), (20, 7799590), (25, 6239672), (40, 3899795), (50, 3119836), (100, 1559918), (200, 779959), (643, 242600), (1213, 128600), (1286, 121300), (2426, 64300), (2572, 60650), (3215, 48520), (4852, 32150), (5144, 30325), (6065, 25720), (6430, 24260), (9704, 16075), (12130, 12860)]