338288540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{21713}}^1$

素因数の和:21782

約数の個数: 48

約数和(自身を含む): 766069920

約数和(自身を除く): 427781380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 21713, 43426, 86852, 108565, 217130, 412547, 434260, 825094, 890233, 1650188, 1780466, 2062735, 3560932, 4125470, 4451165, 8250940, 8902330, 16914427, 17804660, 33828854, 67657708, 84572135, 169144270, 338288540]

約数ペア:

[(1, 338288540), (2, 169144270), (4, 84572135), (5, 67657708), (10, 33828854), (19, 17804660), (20, 16914427), (38, 8902330), (41, 8250940), (76, 4451165), (82, 4125470), (95, 3560932), (164, 2062735), (190, 1780466), (205, 1650188), (380, 890233), (410, 825094), (779, 434260), (820, 412547), (1558, 217130), (3116, 108565), (3895, 86852), (7790, 43426), (15580, 21713)]