2080280

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 4728240

約数和(自身を除く): 2647960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 397, 524, 655, 794, 1048, 1310, 1588, 1985, 2620, 3176, 3970, 5240, 7940, 15880, 52007, 104014, 208028, 260035, 416056, 520070, 1040140, 2080280]

約数ペア:

[(1, 2080280), (2, 1040140), (4, 520070), (5, 416056), (8, 260035), (10, 208028), (20, 104014), (40, 52007), (131, 15880), (262, 7940), (397, 5240), (524, 3970), (655, 3176), (794, 2620), (1048, 1985), (1310, 1588)]