321007336

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:626

約数の個数: 64

約数和(自身を含む): 665280000

約数和(自身を除く): 344272664

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 89, 104, 158, 178, 316, 356, 439, 632, 712, 878, 1027, 1157, 1756, 2054, 2314, 3512, 4108, 4628, 5707, 7031, 8216, 9256, 11414, 14062, 22828, 28124, 34681, 39071, 45656, 56248, 69362, 78142, 91403, 138724, 156284, 182806, 277448, 312568, 365612, 450853, 507923, 731224, 901706, 1015846, 1803412, 2031692, 3086609, 3606824, 4063384, 6173218, 12346436, 24692872, 40125917, 80251834, 160503668, 321007336]

約数ペア:

[(1, 321007336), (2, 160503668), (4, 80251834), (8, 40125917), (13, 24692872), (26, 12346436), (52, 6173218), (79, 4063384), (89, 3606824), (104, 3086609), (158, 2031692), (178, 1803412), (316, 1015846), (356, 901706), (439, 731224), (632, 507923), (712, 450853), (878, 365612), (1027, 312568), (1157, 277448), (1756, 182806), (2054, 156284), (2314, 138724), (3512, 91403), (4108, 78142), (4628, 69362), (5707, 56248), (7031, 45656), (8216, 39071), (9256, 34681), (11414, 28124), (14062, 22828)]