217580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:86

約数の個数: 48

約数和(自身を含む): 532224

約数和(自身を除く): 314644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 43, 44, 46, 55, 86, 92, 110, 115, 172, 215, 220, 230, 253, 430, 460, 473, 506, 860, 946, 989, 1012, 1265, 1892, 1978, 2365, 2530, 3956, 4730, 4945, 5060, 9460, 9890, 10879, 19780, 21758, 43516, 54395, 108790, 217580]

約数ペア:

[(1, 217580), (2, 108790), (4, 54395), (5, 43516), (10, 21758), (11, 19780), (20, 10879), (22, 9890), (23, 9460), (43, 5060), (44, 4945), (46, 4730), (55, 3956), (86, 2530), (92, 2365), (110, 1978), (115, 1892), (172, 1265), (215, 1012), (220, 989), (230, 946), (253, 860), (430, 506), (460, 473)]