19995904

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{4111}}^1$

素因数の和:4146

約数の個数: 36

約数和(自身を含む): 42024640

約数和(自身を除く): 22028736

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4111, 4864, 8222, 16444, 32888, 65776, 78109, 131552, 156218, 263104, 312436, 526208, 624872, 1052416, 1249744, 2499488, 4998976, 9997952, 19995904]

約数ペア:

[(1, 19995904), (2, 9997952), (4, 4998976), (8, 2499488), (16, 1249744), (19, 1052416), (32, 624872), (38, 526208), (64, 312436), (76, 263104), (128, 156218), (152, 131552), (256, 78109), (304, 65776), (608, 32888), (1216, 16444), (2432, 8222), (4111, 4864)]