20378388

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{541}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 49413056

約数和(自身を除く): 29034668

約数列:

[1, 2, 3, 4, 6, 12, 43, 73, 86, 129, 146, 172, 219, 258, 292, 438, 516, 541, 876, 1082, 1623, 2164, 3139, 3246, 6278, 6492, 9417, 12556, 18834, 23263, 37668, 39493, 46526, 69789, 78986, 93052, 118479, 139578, 157972, 236958, 279156, 473916, 1698199, 3396398, 5094597, 6792796, 10189194, 20378388]

約数ペア:

[(1, 20378388), (2, 10189194), (3, 6792796), (4, 5094597), (6, 3396398), (12, 1698199), (43, 473916), (73, 279156), (86, 236958), (129, 157972), (146, 139578), (172, 118479), (219, 93052), (258, 78986), (292, 69789), (438, 46526), (516, 39493), (541, 37668), (876, 23263), (1082, 18834), (1623, 12556), (2164, 9417), (3139, 6492), (3246, 6278)]