387014740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{557}}^1\times {\mathrm{709}}^1$

素因数の和:1289

約数の個数: 72

約数和(自身を含む): 948454920

約数和(自身を除く): 561440180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 557, 709, 980, 1114, 1418, 2228, 2785, 2836, 3545, 3899, 4963, 5570, 7090, 7798, 9926, 11140, 14180, 15596, 19495, 19852, 24815, 27293, 34741, 38990, 49630, 54586, 69482, 77980, 99260, 109172, 136465, 138964, 173705, 272930, 347410, 394913, 545860, 694820, 789826, 1579652, 1974565, 2764391, 3949130, 5528782, 7898260, 11057564, 13821955, 19350737, 27643910, 38701474, 55287820, 77402948, 96753685, 193507370, 387014740]

約数ペア:

[(1, 387014740), (2, 193507370), (4, 96753685), (5, 77402948), (7, 55287820), (10, 38701474), (14, 27643910), (20, 19350737), (28, 13821955), (35, 11057564), (49, 7898260), (70, 5528782), (98, 3949130), (140, 2764391), (196, 1974565), (245, 1579652), (490, 789826), (557, 694820), (709, 545860), (980, 394913), (1114, 347410), (1418, 272930), (2228, 173705), (2785, 138964), (2836, 136465), (3545, 109172), (3899, 99260), (4963, 77980), (5570, 69482), (7090, 54586), (7798, 49630), (9926, 38990), (11140, 34741), (14180, 27293), (15596, 24815), (19495, 19852)]