7980520

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1523}}^1$

素因数の和:1665

約数の個数: 32

約数和(自身を含む): 18105120

約数和(自身を除く): 10124600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 1523, 2620, 3046, 5240, 6092, 7615, 12184, 15230, 30460, 60920, 199513, 399026, 798052, 997565, 1596104, 1995130, 3990260, 7980520]

約数ペア:

[(1, 7980520), (2, 3990260), (4, 1995130), (5, 1596104), (8, 997565), (10, 798052), (20, 399026), (40, 199513), (131, 60920), (262, 30460), (524, 15230), (655, 12184), (1048, 7615), (1310, 6092), (1523, 5240), (2620, 3046)]