19853480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 47606400

約数和(自身を除く): 27752920

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 151, 152, 173, 190, 302, 346, 380, 604, 692, 755, 760, 865, 1208, 1384, 1510, 1730, 2869, 3020, 3287, 3460, 5738, 6040, 6574, 6920, 11476, 13148, 14345, 16435, 22952, 26123, 26296, 28690, 32870, 52246, 57380, 65740, 104492, 114760, 130615, 131480, 208984, 261230, 496337, 522460, 992674, 1044920, 1985348, 2481685, 3970696, 4963370, 9926740, 19853480]

約数ペア:

[(1, 19853480), (2, 9926740), (4, 4963370), (5, 3970696), (8, 2481685), (10, 1985348), (19, 1044920), (20, 992674), (38, 522460), (40, 496337), (76, 261230), (95, 208984), (151, 131480), (152, 130615), (173, 114760), (190, 104492), (302, 65740), (346, 57380), (380, 52246), (604, 32870), (692, 28690), (755, 26296), (760, 26123), (865, 22952), (1208, 16435), (1384, 14345), (1510, 13148), (1730, 11476), (2869, 6920), (3020, 6574), (3287, 6040), (3460, 5738)]