138806720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:638

約数の個数: 112

約数和(自身を含む): 362455968

約数和(自身を除く): 223649248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 64, 65, 80, 104, 122, 130, 160, 208, 244, 260, 305, 320, 416, 488, 520, 547, 610, 793, 832, 976, 1040, 1094, 1220, 1586, 1952, 2080, 2188, 2440, 2735, 3172, 3904, 3965, 4160, 4376, 4880, 5470, 6344, 7111, 7930, 8752, 9760, 10940, 12688, 14222, 15860, 17504, 19520, 21880, 25376, 28444, 31720, 33367, 35008, 35555, 43760, 50752, 56888, 63440, 66734, 71110, 87520, 113776, 126880, 133468, 142220, 166835, 175040, 227552, 253760, 266936, 284440, 333670, 433771, 455104, 533872, 568880, 667340, 867542, 1067744, 1137760, 1334680, 1735084, 2135488, 2168855, 2275520, 2669360, 3470168, 4337710, 5338720, 6940336, 8675420, 10677440, 13880672, 17350840, 27761344, 34701680, 69403360, 138806720]

約数ペア:

[(1, 138806720), (2, 69403360), (4, 34701680), (5, 27761344), (8, 17350840), (10, 13880672), (13, 10677440), (16, 8675420), (20, 6940336), (26, 5338720), (32, 4337710), (40, 3470168), (52, 2669360), (61, 2275520), (64, 2168855), (65, 2135488), (80, 1735084), (104, 1334680), (122, 1137760), (130, 1067744), (160, 867542), (208, 667340), (244, 568880), (260, 533872), (305, 455104), (320, 433771), (416, 333670), (488, 284440), (520, 266936), (547, 253760), (610, 227552), (793, 175040), (832, 166835), (976, 142220), (1040, 133468), (1094, 126880), (1220, 113776), (1586, 87520), (1952, 71110), (2080, 66734), (2188, 63440), (2440, 56888), (2735, 50752), (3172, 43760), (3904, 35555), (3965, 35008), (4160, 33367), (4376, 31720), (4880, 28444), (5470, 25376), (6344, 21880), (7111, 19520), (7930, 17504), (8752, 15860), (9760, 14222), (10940, 12688)]