19485520

素因数分解:

$2^4\times 5^1\times {\mathrm{373}}^1\times {\mathrm{653}}^1$

素因数の和:1039

約数の個数: 40

約数和(自身を含む): 45494856

約数和(自身を除く): 26009336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 373, 653, 746, 1306, 1492, 1865, 2612, 2984, 3265, 3730, 5224, 5968, 6530, 7460, 10448, 13060, 14920, 26120, 29840, 52240, 243569, 487138, 974276, 1217845, 1948552, 2435690, 3897104, 4871380, 9742760, 19485520]

約数ペア:

[(1, 19485520), (2, 9742760), (4, 4871380), (5, 3897104), (8, 2435690), (10, 1948552), (16, 1217845), (20, 974276), (40, 487138), (80, 243569), (373, 52240), (653, 29840), (746, 26120), (1306, 14920), (1492, 13060), (1865, 10448), (2612, 7460), (2984, 6530), (3265, 5968), (3730, 5224)]