20450812

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{557}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 36653904

約数和(自身を除く): 16203092

約数列:

[1, 2, 4, 67, 134, 137, 268, 274, 548, 557, 1114, 2228, 9179, 18358, 36716, 37319, 74638, 76309, 149276, 152618, 305236, 5112703, 10225406, 20450812]

約数ペア:

[(1, 20450812), (2, 10225406), (4, 5112703), (67, 305236), (134, 152618), (137, 149276), (268, 76309), (274, 74638), (548, 37319), (557, 36716), (1114, 18358), (2228, 9179)]