549408080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{653}}^1\times {\mathrm{809}}^1$

素因数の和:1488

約数の個数: 80

約数和(自身を含む): 1379442960

約数和(自身を除く): 830034880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 653, 809, 1040, 1306, 1618, 2612, 3236, 3265, 4045, 5224, 6472, 6530, 8090, 8489, 10448, 10517, 12944, 13060, 16180, 16978, 21034, 26120, 32360, 33956, 42068, 42445, 52240, 52585, 64720, 67912, 84136, 84890, 105170, 135824, 168272, 169780, 210340, 339560, 420680, 528277, 679120, 841360, 1056554, 2113108, 2641385, 4226216, 5282770, 6867601, 8452432, 10565540, 13735202, 21131080, 27470404, 34338005, 42262160, 54940808, 68676010, 109881616, 137352020, 274704040, 549408080]

約数ペア:

[(1, 549408080), (2, 274704040), (4, 137352020), (5, 109881616), (8, 68676010), (10, 54940808), (13, 42262160), (16, 34338005), (20, 27470404), (26, 21131080), (40, 13735202), (52, 10565540), (65, 8452432), (80, 6867601), (104, 5282770), (130, 4226216), (208, 2641385), (260, 2113108), (520, 1056554), (653, 841360), (809, 679120), (1040, 528277), (1306, 420680), (1618, 339560), (2612, 210340), (3236, 169780), (3265, 168272), (4045, 135824), (5224, 105170), (6472, 84890), (6530, 84136), (8090, 67912), (8489, 64720), (10448, 52585), (10517, 52240), (12944, 42445), (13060, 42068), (16180, 33956), (16978, 32360), (21034, 26120)]