20376284

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:282

約数の個数: 36

約数和(自身を含む): 38276784

約数和(自身を除く): 17900500

約数列:

[1, 2, 4, 19, 38, 76, 103, 137, 206, 274, 361, 412, 548, 722, 1444, 1957, 2603, 3914, 5206, 7828, 10412, 14111, 28222, 37183, 49457, 56444, 74366, 98914, 148732, 197828, 268109, 536218, 1072436, 5094071, 10188142, 20376284]

約数ペア:

[(1, 20376284), (2, 10188142), (4, 5094071), (19, 1072436), (38, 536218), (76, 268109), (103, 197828), (137, 148732), (206, 98914), (274, 74366), (361, 56444), (412, 49457), (548, 37183), (722, 28222), (1444, 14111), (1957, 10412), (2603, 7828), (3914, 5206)]