20249584

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{683}}^1$

素因数の和:817

約数の個数: 40

約数和(自身を含む): 41983920

約数和(自身を除く): 21734336

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 109, 136, 218, 272, 436, 683, 872, 1366, 1744, 1853, 2732, 3706, 5464, 7412, 10928, 11611, 14824, 23222, 29648, 46444, 74447, 92888, 148894, 185776, 297788, 595576, 1191152, 1265599, 2531198, 5062396, 10124792, 20249584]

約数ペア:

[(1, 20249584), (2, 10124792), (4, 5062396), (8, 2531198), (16, 1265599), (17, 1191152), (34, 595576), (68, 297788), (109, 185776), (136, 148894), (218, 92888), (272, 74447), (436, 46444), (683, 29648), (872, 23222), (1366, 14824), (1744, 11611), (1853, 10928), (2732, 7412), (3706, 5464)]