1687128760

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{434827}}^1$

素因数の和:434935

約数の個数: 32

約数和(自身を含む): 3835182960

約数和(自身を除く): 2148054200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 434827, 869654, 1739308, 2174135, 3478616, 4348270, 8696540, 17393080, 42178219, 84356438, 168712876, 210891095, 337425752, 421782190, 843564380, 1687128760]

約数ペア:

[(1, 1687128760), (2, 843564380), (4, 421782190), (5, 337425752), (8, 210891095), (10, 168712876), (20, 84356438), (40, 42178219), (97, 17393080), (194, 8696540), (388, 4348270), (485, 3478616), (776, 2174135), (970, 1739308), (1940, 869654), (3880, 434827)]