47129720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 123171840

約数和(自身を除く): 76042120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 47, 53, 55, 86, 88, 94, 106, 110, 172, 188, 212, 215, 220, 235, 265, 344, 376, 424, 430, 440, 470, 473, 517, 530, 583, 860, 940, 946, 1034, 1060, 1166, 1720, 1880, 1892, 2021, 2068, 2120, 2279, 2332, 2365, 2491, 2585, 2915, 3784, 4042, 4136, 4558, 4664, 4730, 4982, 5170, 5830, 8084, 9116, 9460, 9964, 10105, 10340, 11395, 11660, 12455, 16168, 18232, 18920, 19928, 20210, 20680, 22231, 22790, 23320, 24910, 25069, 27401, 40420, 44462, 45580, 49820, 50138, 54802, 80840, 88924, 91160, 99640, 100276, 107113, 109604, 111155, 125345, 137005, 177848, 200552, 214226, 219208, 222310, 250690, 274010, 428452, 444620, 501380, 535565, 548020, 856904, 889240, 1002760, 1071130, 1096040, 1178243, 2142260, 2356486, 4284520, 4712972, 5891215, 9425944, 11782430, 23564860, 47129720]

約数ペア:

[(1, 47129720), (2, 23564860), (4, 11782430), (5, 9425944), (8, 5891215), (10, 4712972), (11, 4284520), (20, 2356486), (22, 2142260), (40, 1178243), (43, 1096040), (44, 1071130), (47, 1002760), (53, 889240), (55, 856904), (86, 548020), (88, 535565), (94, 501380), (106, 444620), (110, 428452), (172, 274010), (188, 250690), (212, 222310), (215, 219208), (220, 214226), (235, 200552), (265, 177848), (344, 137005), (376, 125345), (424, 111155), (430, 109604), (440, 107113), (470, 100276), (473, 99640), (517, 91160), (530, 88924), (583, 80840), (860, 54802), (940, 50138), (946, 49820), (1034, 45580), (1060, 44462), (1166, 40420), (1720, 27401), (1880, 25069), (1892, 24910), (2021, 23320), (2068, 22790), (2120, 22231), (2279, 20680), (2332, 20210), (2365, 19928), (2491, 18920), (2585, 18232), (2915, 16168), (3784, 12455), (4042, 11660), (4136, 11395), (4558, 10340), (4664, 10105), (4730, 9964), (4982, 9460), (5170, 9116), (5830, 8084)]