716796640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{639997}}^1$

素因数の和:640019

約数の個数: 48

約数和(自身を含む): 1935353952

約数和(自身を除く): 1218557312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 639997, 1279994, 2559988, 3199985, 4479979, 5119976, 6399970, 8959958, 10239952, 12799940, 17919916, 20479904, 22399895, 25599880, 35839832, 44799790, 51199760, 71679664, 89599580, 102399520, 143359328, 179199160, 358398320, 716796640]

約数ペア:

[(1, 716796640), (2, 358398320), (4, 179199160), (5, 143359328), (7, 102399520), (8, 89599580), (10, 71679664), (14, 51199760), (16, 44799790), (20, 35839832), (28, 25599880), (32, 22399895), (35, 20479904), (40, 17919916), (56, 12799940), (70, 10239952), (80, 8959958), (112, 6399970), (140, 5119976), (160, 4479979), (224, 3199985), (280, 2559988), (560, 1279994), (1120, 639997)]