212629540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{1451}}^1$

素因数の和:1908

約数の個数: 48

約数和(自身を含む): 474211584

約数和(自身を除く): 261582044

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 431, 862, 1451, 1724, 2155, 2902, 4310, 5804, 7255, 7327, 8620, 14510, 14654, 24667, 29020, 29308, 36635, 49334, 73270, 98668, 123335, 146540, 246670, 493340, 625381, 1250762, 2501524, 3126905, 6253810, 10631477, 12507620, 21262954, 42525908, 53157385, 106314770, 212629540]

約数ペア:

[(1, 212629540), (2, 106314770), (4, 53157385), (5, 42525908), (10, 21262954), (17, 12507620), (20, 10631477), (34, 6253810), (68, 3126905), (85, 2501524), (170, 1250762), (340, 625381), (431, 493340), (862, 246670), (1451, 146540), (1724, 123335), (2155, 98668), (2902, 73270), (4310, 49334), (5804, 36635), (7255, 29308), (7327, 29020), (8620, 24667), (14510, 14654)]