31438805

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 9618475

約数列:

[1, 5, 31, 43, 53, 89, 155, 215, 265, 445, 1333, 1643, 2279, 2759, 3827, 4717, 6665, 8215, 11395, 13795, 19135, 23585, 70649, 118637, 146227, 202831, 353245, 593185, 731135, 1014155, 6287761, 31438805]

約数ペア:

[(1, 31438805), (5, 6287761), (31, 1014155), (43, 731135), (53, 593185), (89, 353245), (155, 202831), (215, 146227), (265, 118637), (445, 70649), (1333, 23585), (1643, 19135), (2279, 13795), (2759, 11395), (3827, 8215), (4717, 6665)]