8920780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:127

約数の個数: 96

約数和(自身を含む): 22353408

約数和(自身を除く): 13432628

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 41, 43, 44, 46, 55, 82, 86, 92, 110, 115, 164, 172, 205, 215, 220, 230, 253, 410, 430, 451, 460, 473, 506, 820, 860, 902, 943, 946, 989, 1012, 1265, 1763, 1804, 1886, 1892, 1978, 2255, 2365, 2530, 3526, 3772, 3956, 4510, 4715, 4730, 4945, 5060, 7052, 8815, 9020, 9430, 9460, 9890, 10373, 10879, 17630, 18860, 19393, 19780, 20746, 21758, 35260, 38786, 40549, 41492, 43516, 51865, 54395, 77572, 81098, 96965, 103730, 108790, 162196, 193930, 202745, 207460, 217580, 387860, 405490, 446039, 810980, 892078, 1784156, 2230195, 4460390, 8920780]

約数ペア:

[(1, 8920780), (2, 4460390), (4, 2230195), (5, 1784156), (10, 892078), (11, 810980), (20, 446039), (22, 405490), (23, 387860), (41, 217580), (43, 207460), (44, 202745), (46, 193930), (55, 162196), (82, 108790), (86, 103730), (92, 96965), (110, 81098), (115, 77572), (164, 54395), (172, 51865), (205, 43516), (215, 41492), (220, 40549), (230, 38786), (253, 35260), (410, 21758), (430, 20746), (451, 19780), (460, 19393), (473, 18860), (506, 17630), (820, 10879), (860, 10373), (902, 9890), (943, 9460), (946, 9430), (989, 9020), (1012, 8815), (1265, 7052), (1763, 5060), (1804, 4945), (1886, 4730), (1892, 4715), (1978, 4510), (2255, 3956), (2365, 3772), (2530, 3526)]