16065875

素因数分解:

$5^3\times 7^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 48

約数和(自身を含む): 24257376

約数和(自身を除く): 8191501

約数列:

[1, 5, 7, 25, 35, 43, 49, 61, 125, 175, 215, 245, 301, 305, 427, 875, 1075, 1225, 1505, 1525, 2107, 2135, 2623, 2989, 5375, 6125, 7525, 7625, 10535, 10675, 13115, 14945, 18361, 37625, 52675, 53375, 65575, 74725, 91805, 128527, 263375, 327875, 373625, 459025, 642635, 2295125, 3213175, 16065875]

約数ペア:

[(1, 16065875), (5, 3213175), (7, 2295125), (25, 642635), (35, 459025), (43, 373625), (49, 327875), (61, 263375), (125, 128527), (175, 91805), (215, 74725), (245, 65575), (301, 53375), (305, 52675), (427, 37625), (875, 18361), (1075, 14945), (1225, 13115), (1505, 10675), (1525, 10535), (2107, 7625), (2135, 7525), (2623, 6125), (2989, 5375)]