2029121680

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{284989}}^1$

素因数の和:285091

約数の個数: 40

約数和(自身を含む): 4770732600

約数和(自身を除く): 2741610920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 284989, 569978, 1139956, 1424945, 2279912, 2849890, 4559824, 5699780, 11399560, 22799120, 25364021, 50728042, 101456084, 126820105, 202912168, 253640210, 405824336, 507280420, 1014560840, 2029121680]

約数ペア:

[(1, 2029121680), (2, 1014560840), (4, 507280420), (5, 405824336), (8, 253640210), (10, 202912168), (16, 126820105), (20, 101456084), (40, 50728042), (80, 25364021), (89, 22799120), (178, 11399560), (356, 5699780), (445, 4559824), (712, 2849890), (890, 2279912), (1424, 1424945), (1780, 1139956), (3560, 569978), (7120, 284989)]