1640908040

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{102301}}^1$

素因数の和:102713

約数の個数: 32

約数和(自身を含む): 3701286360

約数和(自身を除く): 2060378320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 16040, 102301, 204602, 409204, 511505, 818408, 1023010, 2046020, 4092040, 41022701, 82045402, 164090804, 205113505, 328181608, 410227010, 820454020, 1640908040]

約数ペア:

[(1, 1640908040), (2, 820454020), (4, 410227010), (5, 328181608), (8, 205113505), (10, 164090804), (20, 82045402), (40, 41022701), (401, 4092040), (802, 2046020), (1604, 1023010), (2005, 818408), (3208, 511505), (4010, 409204), (8020, 204602), (16040, 102301)]