20291184

素因数分解:

$2^4\times 3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:199

約数の個数: 120

約数和(自身を含む): 60643440

約数和(自身を除く): 40352256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 36, 43, 48, 58, 72, 86, 87, 113, 116, 129, 144, 172, 174, 226, 232, 258, 261, 339, 344, 348, 387, 452, 464, 516, 522, 678, 688, 696, 774, 904, 1017, 1032, 1044, 1247, 1356, 1392, 1548, 1808, 2034, 2064, 2088, 2494, 2712, 3096, 3277, 3741, 4068, 4176, 4859, 4988, 5424, 6192, 6554, 7482, 8136, 9718, 9831, 9976, 11223, 13108, 14577, 14964, 16272, 19436, 19662, 19952, 22446, 26216, 29154, 29493, 29928, 38872, 39324, 43731, 44892, 52432, 58308, 58986, 59856, 77744, 78648, 87462, 89784, 116616, 117972, 140911, 157296, 174924, 179568, 233232, 235944, 281822, 349848, 422733, 471888, 563644, 699696, 845466, 1127288, 1268199, 1690932, 2254576, 2536398, 3381864, 5072796, 6763728, 10145592, 20291184]

約数ペア:

[(1, 20291184), (2, 10145592), (3, 6763728), (4, 5072796), (6, 3381864), (8, 2536398), (9, 2254576), (12, 1690932), (16, 1268199), (18, 1127288), (24, 845466), (29, 699696), (36, 563644), (43, 471888), (48, 422733), (58, 349848), (72, 281822), (86, 235944), (87, 233232), (113, 179568), (116, 174924), (129, 157296), (144, 140911), (172, 117972), (174, 116616), (226, 89784), (232, 87462), (258, 78648), (261, 77744), (339, 59856), (344, 58986), (348, 58308), (387, 52432), (452, 44892), (464, 43731), (516, 39324), (522, 38872), (678, 29928), (688, 29493), (696, 29154), (774, 26216), (904, 22446), (1017, 19952), (1032, 19662), (1044, 19436), (1247, 16272), (1356, 14964), (1392, 14577), (1548, 13108), (1808, 11223), (2034, 9976), (2064, 9831), (2088, 9718), (2494, 8136), (2712, 7482), (3096, 6554), (3277, 6192), (3741, 5424), (4068, 4988), (4176, 4859)]