20169140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{433}}^1$

素因数の和:596

約数の個数: 48

約数和(自身を含む): 45278352

約数和(自身を除く): 25109212

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 137, 170, 274, 340, 433, 548, 685, 866, 1370, 1732, 2165, 2329, 2740, 4330, 4658, 7361, 8660, 9316, 11645, 14722, 23290, 29444, 36805, 46580, 59321, 73610, 118642, 147220, 237284, 296605, 593210, 1008457, 1186420, 2016914, 4033828, 5042285, 10084570, 20169140]

約数ペア:

[(1, 20169140), (2, 10084570), (4, 5042285), (5, 4033828), (10, 2016914), (17, 1186420), (20, 1008457), (34, 593210), (68, 296605), (85, 237284), (137, 147220), (170, 118642), (274, 73610), (340, 59321), (433, 46580), (548, 36805), (685, 29444), (866, 23290), (1370, 14722), (1732, 11645), (2165, 9316), (2329, 8660), (2740, 7361), (4330, 4658)]