18980493553400

素因数分解:

$2^3\times 5^2\times {\mathrm{1381}}^1\times {\mathrm{68720107}}^1$

素因数の和:68721504

約数の個数: 48

約数和(自身を含む): 44161603004040

約数和(自身を除く): 25181109450640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 1381, 2762, 5524, 6905, 11048, 13810, 27620, 34525, 55240, 69050, 138100, 276200, 68720107, 137440214, 274880428, 343600535, 549760856, 687201070, 1374402140, 1718002675, 2748804280, 3436005350, 6872010700, 13744021400, 94902467767, 189804935534, 379609871068, 474512338835, 759219742136, 949024677670, 1898049355340, 2372561694175, 3796098710680, 4745123388350, 9490246776700, 18980493553400]

約数ペア:

[(1, 18980493553400), (2, 9490246776700), (4, 4745123388350), (5, 3796098710680), (8, 2372561694175), (10, 1898049355340), (20, 949024677670), (25, 759219742136), (40, 474512338835), (50, 379609871068), (100, 189804935534), (200, 94902467767), (1381, 13744021400), (2762, 6872010700), (5524, 3436005350), (6905, 2748804280), (11048, 1718002675), (13810, 1374402140), (27620, 687201070), (34525, 549760856), (55240, 343600535), (69050, 274880428), (138100, 137440214), (276200, 68720107)]