2008754920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{564257}}^1$

素因数の和:564357

約数の個数: 32

約数和(自身を含む): 4570489800

約数和(自身を除く): 2561734880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 564257, 1128514, 2257028, 2821285, 4514056, 5642570, 11285140, 22570280, 50218873, 100437746, 200875492, 251094365, 401750984, 502188730, 1004377460, 2008754920]

約数ペア:

[(1, 2008754920), (2, 1004377460), (4, 502188730), (5, 401750984), (8, 251094365), (10, 200875492), (20, 100437746), (40, 50218873), (89, 22570280), (178, 11285140), (356, 5642570), (445, 4514056), (712, 2821285), (890, 2257028), (1780, 1128514), (3560, 564257)]