640416095

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 908034624

約数和(自身を除く): 267618529

約数列:

[1, 5, 11, 17, 55, 71, 85, 121, 187, 355, 605, 781, 877, 935, 1207, 2057, 3905, 4385, 6035, 8591, 9647, 10285, 13277, 14909, 42955, 48235, 62267, 66385, 74545, 106117, 146047, 163999, 311335, 530585, 684937, 730235, 819995, 1058539, 1803989, 3424685, 5292695, 7534307, 9019945, 11643929, 37671535, 58219645, 128083219, 640416095]

約数ペア:

[(1, 640416095), (5, 128083219), (11, 58219645), (17, 37671535), (55, 11643929), (71, 9019945), (85, 7534307), (121, 5292695), (187, 3424685), (355, 1803989), (605, 1058539), (781, 819995), (877, 730235), (935, 684937), (1207, 530585), (2057, 311335), (3905, 163999), (4385, 146047), (6035, 106117), (8591, 74545), (9647, 66385), (10285, 62267), (13277, 48235), (14909, 42955)]