399634456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{383}}^1$

素因数の和:608

約数の個数: 64

約数和(自身を含む): 825753600

約数和(自身を除く): 426119144

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 104, 127, 158, 254, 316, 383, 508, 632, 766, 1016, 1027, 1532, 1651, 2054, 3064, 3302, 4108, 4979, 6604, 8216, 9958, 10033, 13208, 19916, 20066, 30257, 39832, 40132, 48641, 60514, 80264, 97282, 121028, 130429, 194564, 242056, 260858, 389128, 393341, 521716, 632333, 786682, 1043432, 1264666, 1573364, 2529332, 3146728, 3842639, 5058664, 7685278, 15370556, 30741112, 49954307, 99908614, 199817228, 399634456]

約数ペア:

[(1, 399634456), (2, 199817228), (4, 99908614), (8, 49954307), (13, 30741112), (26, 15370556), (52, 7685278), (79, 5058664), (104, 3842639), (127, 3146728), (158, 2529332), (254, 1573364), (316, 1264666), (383, 1043432), (508, 786682), (632, 632333), (766, 521716), (1016, 393341), (1027, 389128), (1532, 260858), (1651, 242056), (2054, 194564), (3064, 130429), (3302, 121028), (4108, 97282), (4979, 80264), (6604, 60514), (8216, 48641), (9958, 40132), (10033, 39832), (13208, 30257), (19916, 20066)]