18748345

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 29877120

約数和(自身を除く): 11128775

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 121, 133, 209, 233, 385, 605, 665, 847, 1045, 1165, 1463, 1631, 2299, 2563, 4235, 4427, 7315, 8155, 11495, 12815, 16093, 17941, 22135, 28193, 30989, 48697, 80465, 89705, 140965, 154945, 197351, 243485, 340879, 535667, 986755, 1704395, 2678335, 3749669, 18748345]

約数ペア:

[(1, 18748345), (5, 3749669), (7, 2678335), (11, 1704395), (19, 986755), (35, 535667), (55, 340879), (77, 243485), (95, 197351), (121, 154945), (133, 140965), (209, 89705), (233, 80465), (385, 48697), (605, 30989), (665, 28193), (847, 22135), (1045, 17941), (1165, 16093), (1463, 12815), (1631, 11495), (2299, 8155), (2563, 7315), (4235, 4427)]