80648464

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20407}}^1$

素因数の和:20447

約数の個数: 40

約数和(自身を含む): 177141440

約数和(自身を除く): 96492976

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 20407, 40814, 81628, 163256, 265291, 326512, 387733, 530582, 775466, 1061164, 1550932, 2122328, 3101864, 4244656, 5040529, 6203728, 10081058, 20162116, 40324232, 80648464]

約数ペア:

[(1, 80648464), (2, 40324232), (4, 20162116), (8, 10081058), (13, 6203728), (16, 5040529), (19, 4244656), (26, 3101864), (38, 2122328), (52, 1550932), (76, 1061164), (104, 775466), (152, 530582), (208, 387733), (247, 326512), (304, 265291), (494, 163256), (988, 81628), (1976, 40814), (3952, 20407)]