85726520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 225815040

約数和(自身を除く): 140088520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 43, 44, 46, 55, 86, 88, 92, 110, 115, 172, 184, 197, 215, 220, 230, 253, 344, 394, 430, 440, 460, 473, 506, 788, 860, 920, 946, 985, 989, 1012, 1265, 1576, 1720, 1892, 1970, 1978, 2024, 2167, 2365, 2530, 3784, 3940, 3956, 4334, 4531, 4730, 4945, 5060, 7880, 7912, 8471, 8668, 9062, 9460, 9890, 10120, 10835, 10879, 16942, 17336, 18124, 18920, 19780, 21670, 21758, 22655, 33884, 36248, 39560, 42355, 43340, 43516, 45310, 49841, 54395, 67768, 84710, 86680, 87032, 90620, 93181, 99682, 108790, 169420, 181240, 186362, 194833, 199364, 217580, 249205, 338840, 372724, 389666, 398728, 435160, 465905, 498410, 745448, 779332, 931810, 974165, 996820, 1558664, 1863620, 1948330, 1993640, 2143163, 3727240, 3896660, 4286326, 7793320, 8572652, 10715815, 17145304, 21431630, 42863260, 85726520]

約数ペア:

[(1, 85726520), (2, 42863260), (4, 21431630), (5, 17145304), (8, 10715815), (10, 8572652), (11, 7793320), (20, 4286326), (22, 3896660), (23, 3727240), (40, 2143163), (43, 1993640), (44, 1948330), (46, 1863620), (55, 1558664), (86, 996820), (88, 974165), (92, 931810), (110, 779332), (115, 745448), (172, 498410), (184, 465905), (197, 435160), (215, 398728), (220, 389666), (230, 372724), (253, 338840), (344, 249205), (394, 217580), (430, 199364), (440, 194833), (460, 186362), (473, 181240), (506, 169420), (788, 108790), (860, 99682), (920, 93181), (946, 90620), (985, 87032), (989, 86680), (1012, 84710), (1265, 67768), (1576, 54395), (1720, 49841), (1892, 45310), (1970, 43516), (1978, 43340), (2024, 42355), (2167, 39560), (2365, 36248), (2530, 33884), (3784, 22655), (3940, 21758), (3956, 21670), (4334, 19780), (4531, 18920), (4730, 18124), (4945, 17336), (5060, 16942), (7880, 10879), (7912, 10835), (8471, 10120), (8668, 9890), (9062, 9460)]