1946721760

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{640369}}^1$

素因数の和:640403

約数の個数: 48

約数和(自身を含む): 4841197200

約数和(自身を除く): 2894475440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 640369, 1280738, 2561476, 3201845, 5122952, 6403690, 10245904, 12167011, 12807380, 20491808, 24334022, 25614760, 48668044, 51229520, 60835055, 97336088, 102459040, 121670110, 194672176, 243340220, 389344352, 486680440, 973360880, 1946721760]

約数ペア:

[(1, 1946721760), (2, 973360880), (4, 486680440), (5, 389344352), (8, 243340220), (10, 194672176), (16, 121670110), (19, 102459040), (20, 97336088), (32, 60835055), (38, 51229520), (40, 48668044), (76, 25614760), (80, 24334022), (95, 20491808), (152, 12807380), (160, 12167011), (190, 10245904), (304, 6403690), (380, 5122952), (608, 3201845), (760, 2561476), (1520, 1280738), (3040, 640369)]