71475880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{643}}^1$

素因数の和:1058

約数の個数: 64

約数和(自身を含む): 184544640

約数和(自身を除く): 113068760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 397, 643, 794, 1286, 1588, 1985, 2572, 2779, 3176, 3215, 3970, 4501, 5144, 5558, 6430, 7940, 9002, 11116, 12860, 13895, 15880, 18004, 22232, 22505, 25720, 27790, 36008, 45010, 55580, 90020, 111160, 180040, 255271, 510542, 1021084, 1276355, 1786897, 2042168, 2552710, 3573794, 5105420, 7147588, 8934485, 10210840, 14295176, 17868970, 35737940, 71475880]

約数ペア:

[(1, 71475880), (2, 35737940), (4, 17868970), (5, 14295176), (7, 10210840), (8, 8934485), (10, 7147588), (14, 5105420), (20, 3573794), (28, 2552710), (35, 2042168), (40, 1786897), (56, 1276355), (70, 1021084), (140, 510542), (280, 255271), (397, 180040), (643, 111160), (794, 90020), (1286, 55580), (1588, 45010), (1985, 36008), (2572, 27790), (2779, 25720), (3176, 22505), (3215, 22232), (3970, 18004), (4501, 15880), (5144, 13895), (5558, 12860), (6430, 11116), (7940, 9002)]