221344280

素因数分解:

$2^3\times 5^1\times {\mathrm{907}}^1\times {\mathrm{6101}}^1$

素因数の和:7019

約数の個数: 32

約数和(自身を含む): 498655440

約数和(自身を除く): 277311160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 907, 1814, 3628, 4535, 6101, 7256, 9070, 12202, 18140, 24404, 30505, 36280, 48808, 61010, 122020, 244040, 5533607, 11067214, 22134428, 27668035, 44268856, 55336070, 110672140, 221344280]

約数ペア:

[(1, 221344280), (2, 110672140), (4, 55336070), (5, 44268856), (8, 27668035), (10, 22134428), (20, 11067214), (40, 5533607), (907, 244040), (1814, 122020), (3628, 61010), (4535, 48808), (6101, 36280), (7256, 30505), (9070, 24404), (12202, 18140)]