201981940

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{2141}}^1$

素因数の和:2292

約数の個数: 48

約数和(自身を含む): 437225040

約数和(自身を除く): 235243100

約数列:

[1, 2, 4, 5, 10, 20, 53, 89, 106, 178, 212, 265, 356, 445, 530, 890, 1060, 1780, 2141, 4282, 4717, 8564, 9434, 10705, 18868, 21410, 23585, 42820, 47170, 94340, 113473, 190549, 226946, 381098, 453892, 567365, 762196, 952745, 1134730, 1905490, 2269460, 3810980, 10099097, 20198194, 40396388, 50495485, 100990970, 201981940]

約数ペア:

[(1, 201981940), (2, 100990970), (4, 50495485), (5, 40396388), (10, 20198194), (20, 10099097), (53, 3810980), (89, 2269460), (106, 1905490), (178, 1134730), (212, 952745), (265, 762196), (356, 567365), (445, 453892), (530, 381098), (890, 226946), (1060, 190549), (1780, 113473), (2141, 94340), (4282, 47170), (4717, 42820), (8564, 23585), (9434, 21410), (10705, 18868)]