1318640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:377

約数の個数: 40

約数和(自身を含む): 3133728

約数和(自身を除く): 1815088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 311, 424, 530, 622, 848, 1060, 1244, 1555, 2120, 2488, 3110, 4240, 4976, 6220, 12440, 16483, 24880, 32966, 65932, 82415, 131864, 164830, 263728, 329660, 659320, 1318640]

約数ペア:

[(1, 1318640), (2, 659320), (4, 329660), (5, 263728), (8, 164830), (10, 131864), (16, 82415), (20, 65932), (40, 32966), (53, 24880), (80, 16483), (106, 12440), (212, 6220), (265, 4976), (311, 4240), (424, 3110), (530, 2488), (622, 2120), (848, 1555), (1060, 1244)]