20293472

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 41513472

約数和(自身を除く): 21220000

約数列:

[1, 2, 4, 8, 16, 32, 47, 94, 103, 131, 188, 206, 262, 376, 412, 524, 752, 824, 1048, 1504, 1648, 2096, 3296, 4192, 4841, 6157, 9682, 12314, 13493, 19364, 24628, 26986, 38728, 49256, 53972, 77456, 98512, 107944, 154912, 197024, 215888, 431776, 634171, 1268342, 2536684, 5073368, 10146736, 20293472]

約数ペア:

[(1, 20293472), (2, 10146736), (4, 5073368), (8, 2536684), (16, 1268342), (32, 634171), (47, 431776), (94, 215888), (103, 197024), (131, 154912), (188, 107944), (206, 98512), (262, 77456), (376, 53972), (412, 49256), (524, 38728), (752, 26986), (824, 24628), (1048, 19364), (1504, 13493), (1648, 12314), (2096, 9682), (3296, 6157), (4192, 4841)]