21763340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 47779200

約数和(自身を除く): 26015860

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 157, 239, 290, 314, 478, 580, 628, 785, 956, 1195, 1570, 2390, 3140, 4553, 4780, 6931, 9106, 13862, 18212, 22765, 27724, 34655, 37523, 45530, 69310, 75046, 91060, 138620, 150092, 187615, 375230, 750460, 1088167, 2176334, 4352668, 5440835, 10881670, 21763340]

約数ペア:

[(1, 21763340), (2, 10881670), (4, 5440835), (5, 4352668), (10, 2176334), (20, 1088167), (29, 750460), (58, 375230), (116, 187615), (145, 150092), (157, 138620), (239, 91060), (290, 75046), (314, 69310), (478, 45530), (580, 37523), (628, 34655), (785, 27724), (956, 22765), (1195, 18212), (1570, 13862), (2390, 9106), (3140, 6931), (4553, 4780)]