2987041520

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{91291}}^1$

素因数の和:91713

約数の個数: 40

約数和(自身を含む): 6961927920

約数和(自身を除く): 3974886400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 6544, 8180, 16360, 32720, 91291, 182582, 365164, 456455, 730328, 912910, 1460656, 1825820, 3651640, 7303280, 37338019, 74676038, 149352076, 186690095, 298704152, 373380190, 597408304, 746760380, 1493520760, 2987041520]

約数ペア:

[(1, 2987041520), (2, 1493520760), (4, 746760380), (5, 597408304), (8, 373380190), (10, 298704152), (16, 186690095), (20, 149352076), (40, 74676038), (80, 37338019), (409, 7303280), (818, 3651640), (1636, 1825820), (2045, 1460656), (3272, 912910), (4090, 730328), (6544, 456455), (8180, 365164), (16360, 182582), (32720, 91291)]