1971039700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{402253}}^1$

素因数の和:402281

約数の個数: 54

約数和(自身を含む): 4975479726

約数和(自身を除く): 3004440026

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 402253, 804506, 1609012, 2011265, 2815771, 4022530, 5631542, 8045060, 10056325, 11263084, 14078855, 19710397, 20112650, 28157710, 39420794, 40225300, 56315420, 70394275, 78841588, 98551985, 140788550, 197103970, 281577100, 394207940, 492759925, 985519850, 1971039700]

約数ペア:

[(1, 1971039700), (2, 985519850), (4, 492759925), (5, 394207940), (7, 281577100), (10, 197103970), (14, 140788550), (20, 98551985), (25, 78841588), (28, 70394275), (35, 56315420), (49, 40225300), (50, 39420794), (70, 28157710), (98, 20112650), (100, 19710397), (140, 14078855), (175, 11263084), (196, 10056325), (245, 8045060), (350, 5631542), (490, 4022530), (700, 2815771), (980, 2011265), (1225, 1609012), (2450, 804506), (4900, 402253)]