249997240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{853}}^1$

素因数の和:1312

約数の個数: 64

約数和(自身を含む): 597663360

約数和(自身を除く): 347666120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 431, 680, 853, 862, 1706, 1724, 2155, 3412, 3448, 4265, 4310, 6824, 7327, 8530, 8620, 14501, 14654, 17060, 17240, 29002, 29308, 34120, 36635, 58004, 58616, 72505, 73270, 116008, 145010, 146540, 290020, 293080, 367643, 580040, 735286, 1470572, 1838215, 2941144, 3676430, 6249931, 7352860, 12499862, 14705720, 24999724, 31249655, 49999448, 62499310, 124998620, 249997240]

約数ペア:

[(1, 249997240), (2, 124998620), (4, 62499310), (5, 49999448), (8, 31249655), (10, 24999724), (17, 14705720), (20, 12499862), (34, 7352860), (40, 6249931), (68, 3676430), (85, 2941144), (136, 1838215), (170, 1470572), (340, 735286), (431, 580040), (680, 367643), (853, 293080), (862, 290020), (1706, 146540), (1724, 145010), (2155, 116008), (3412, 73270), (3448, 72505), (4265, 58616), (4310, 58004), (6824, 36635), (7327, 34120), (8530, 29308), (8620, 29002), (14501, 17240), (14654, 17060)]