128028580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{12101}}^1$

素因数の和:12156

約数の個数: 36

約数和(自身を含む): 281081052

約数和(自身を除く): 153052472

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 2116, 2645, 5290, 10580, 12101, 24202, 48404, 60505, 121010, 242020, 278323, 556646, 1113292, 1391615, 2783230, 5566460, 6401429, 12802858, 25605716, 32007145, 64014290, 128028580]

約数ペア:

[(1, 128028580), (2, 64014290), (4, 32007145), (5, 25605716), (10, 12802858), (20, 6401429), (23, 5566460), (46, 2783230), (92, 1391615), (115, 1113292), (230, 556646), (460, 278323), (529, 242020), (1058, 121010), (2116, 60505), (2645, 48404), (5290, 24202), (10580, 12101)]