128214680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:381

約数の個数: 128

約数和(自身を含む): 339888960

約数和(自身を除く): 211674280

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 61, 68, 85, 88, 110, 122, 136, 170, 187, 220, 244, 281, 305, 340, 374, 440, 488, 562, 610, 671, 680, 748, 935, 1037, 1124, 1220, 1342, 1405, 1496, 1870, 2074, 2248, 2440, 2684, 2810, 3091, 3355, 3740, 4148, 4777, 5185, 5368, 5620, 6182, 6710, 7480, 8296, 9554, 10370, 11240, 11407, 12364, 13420, 15455, 17141, 19108, 20740, 22814, 23885, 24728, 26840, 30910, 34282, 38216, 41480, 45628, 47770, 52547, 57035, 61820, 68564, 85705, 91256, 95540, 105094, 114070, 123640, 137128, 171410, 188551, 191080, 210188, 228140, 262735, 291397, 342820, 377102, 420376, 456280, 525470, 582794, 685640, 754204, 942755, 1050940, 1165588, 1456985, 1508408, 1885510, 2101880, 2331176, 2913970, 3205367, 3771020, 5827940, 6410734, 7542040, 11655880, 12821468, 16026835, 25642936, 32053670, 64107340, 128214680]

約数ペア:

[(1, 128214680), (2, 64107340), (4, 32053670), (5, 25642936), (8, 16026835), (10, 12821468), (11, 11655880), (17, 7542040), (20, 6410734), (22, 5827940), (34, 3771020), (40, 3205367), (44, 2913970), (55, 2331176), (61, 2101880), (68, 1885510), (85, 1508408), (88, 1456985), (110, 1165588), (122, 1050940), (136, 942755), (170, 754204), (187, 685640), (220, 582794), (244, 525470), (281, 456280), (305, 420376), (340, 377102), (374, 342820), (440, 291397), (488, 262735), (562, 228140), (610, 210188), (671, 191080), (680, 188551), (748, 171410), (935, 137128), (1037, 123640), (1124, 114070), (1220, 105094), (1342, 95540), (1405, 91256), (1496, 85705), (1870, 68564), (2074, 61820), (2248, 57035), (2440, 52547), (2684, 47770), (2810, 45628), (3091, 41480), (3355, 38216), (3740, 34282), (4148, 30910), (4777, 26840), (5185, 24728), (5368, 23885), (5620, 22814), (6182, 20740), (6710, 19108), (7480, 17141), (8296, 15455), (9554, 13420), (10370, 12364), (11240, 11407)]