1555457920

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1949}}^1$

素因数の和:2040

約数の個数: 128

約数和(自身を含む): 3938220000

約数和(自身を除く): 2382762080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 43, 58, 64, 80, 86, 116, 128, 145, 160, 172, 215, 232, 290, 320, 344, 430, 464, 580, 640, 688, 860, 928, 1160, 1247, 1376, 1720, 1856, 1949, 2320, 2494, 2752, 3440, 3712, 3898, 4640, 4988, 5504, 6235, 6880, 7796, 9280, 9745, 9976, 12470, 13760, 15592, 18560, 19490, 19952, 24940, 27520, 31184, 38980, 39904, 49880, 56521, 62368, 77960, 79808, 83807, 99760, 113042, 124736, 155920, 159616, 167614, 199520, 226084, 249472, 282605, 311840, 335228, 399040, 419035, 452168, 565210, 623680, 670456, 798080, 838070, 904336, 1130420, 1247360, 1340912, 1676140, 1808672, 2260840, 2430403, 2681824, 3352280, 3617344, 4521680, 4860806, 5363648, 6704560, 7234688, 9043360, 9721612, 10727296, 12152015, 13409120, 18086720, 19443224, 24304030, 26818240, 36173440, 38886448, 48608060, 53636480, 77772896, 97216120, 155545792, 194432240, 311091584, 388864480, 777728960, 1555457920]

約数ペア:

[(1, 1555457920), (2, 777728960), (4, 388864480), (5, 311091584), (8, 194432240), (10, 155545792), (16, 97216120), (20, 77772896), (29, 53636480), (32, 48608060), (40, 38886448), (43, 36173440), (58, 26818240), (64, 24304030), (80, 19443224), (86, 18086720), (116, 13409120), (128, 12152015), (145, 10727296), (160, 9721612), (172, 9043360), (215, 7234688), (232, 6704560), (290, 5363648), (320, 4860806), (344, 4521680), (430, 3617344), (464, 3352280), (580, 2681824), (640, 2430403), (688, 2260840), (860, 1808672), (928, 1676140), (1160, 1340912), (1247, 1247360), (1376, 1130420), (1720, 904336), (1856, 838070), (1949, 798080), (2320, 670456), (2494, 623680), (2752, 565210), (3440, 452168), (3712, 419035), (3898, 399040), (4640, 335228), (4988, 311840), (5504, 282605), (6235, 249472), (6880, 226084), (7796, 199520), (9280, 167614), (9745, 159616), (9976, 155920), (12470, 124736), (13760, 113042), (15592, 99760), (18560, 83807), (19490, 79808), (19952, 77960), (24940, 62368), (27520, 56521), (31184, 49880), (38980, 39904)]