42320885

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 55651200

約数和(自身を除く): 13330315

約数列:

[1, 5, 19, 61, 67, 95, 109, 305, 335, 545, 1159, 1273, 2071, 4087, 5795, 6365, 6649, 7303, 10355, 20435, 33245, 36515, 77653, 126331, 138757, 388265, 445483, 631655, 693785, 2227415, 8464177, 42320885]

約数ペア:

[(1, 42320885), (5, 8464177), (19, 2227415), (61, 693785), (67, 631655), (95, 445483), (109, 388265), (305, 138757), (335, 126331), (545, 77653), (1159, 36515), (1273, 33245), (2071, 20435), (4087, 10355), (5795, 7303), (6365, 6649)]