161568280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{4493}}^1$

素因数の和:4564

約数の個数: 64

約数和(自身を含む): 388281600

約数和(自身を除く): 226713320

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1798, 3596, 4493, 4495, 7192, 8986, 8990, 17972, 17980, 22465, 35944, 35960, 44930, 89860, 130297, 139283, 179720, 260594, 278566, 521188, 557132, 651485, 696415, 1042376, 1114264, 1302970, 1392830, 2605940, 2785660, 4039207, 5211880, 5571320, 8078414, 16156828, 20196035, 32313656, 40392070, 80784140, 161568280]

約数ペア:

[(1, 161568280), (2, 80784140), (4, 40392070), (5, 32313656), (8, 20196035), (10, 16156828), (20, 8078414), (29, 5571320), (31, 5211880), (40, 4039207), (58, 2785660), (62, 2605940), (116, 1392830), (124, 1302970), (145, 1114264), (155, 1042376), (232, 696415), (248, 651485), (290, 557132), (310, 521188), (580, 278566), (620, 260594), (899, 179720), (1160, 139283), (1240, 130297), (1798, 89860), (3596, 44930), (4493, 35960), (4495, 35944), (7192, 22465), (8986, 17980), (8990, 17972)]