8961739960

素因数分解:

$2^3\times 5^1\times {\mathrm{2011}}^1\times {\mathrm{111409}}^1$

素因数の和:113431

約数の個数: 32

約数和(自身を含む): 20174122800

約数和(自身を除く): 11212382840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2011, 4022, 8044, 10055, 16088, 20110, 40220, 80440, 111409, 222818, 445636, 557045, 891272, 1114090, 2228180, 4456360, 224043499, 448086998, 896173996, 1120217495, 1792347992, 2240434990, 4480869980, 8961739960]

約数ペア:

[(1, 8961739960), (2, 4480869980), (4, 2240434990), (5, 1792347992), (8, 1120217495), (10, 896173996), (20, 448086998), (40, 224043499), (2011, 4456360), (4022, 2228180), (8044, 1114090), (10055, 891272), (16088, 557045), (20110, 445636), (40220, 222818), (80440, 111409)]