7940290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{79}}^1$

素因数の和:151

約数の個数: 48

約数和(自身を含む): 15926400

約数和(自身を除く): 7986110

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 79, 95, 115, 158, 190, 230, 395, 437, 529, 790, 874, 1058, 1501, 1817, 2185, 2645, 3002, 3634, 4370, 5290, 7505, 9085, 10051, 15010, 18170, 20102, 34523, 41791, 50255, 69046, 83582, 100510, 172615, 208955, 345230, 417910, 794029, 1588058, 3970145, 7940290]

約数ペア:

[(1, 7940290), (2, 3970145), (5, 1588058), (10, 794029), (19, 417910), (23, 345230), (38, 208955), (46, 172615), (79, 100510), (95, 83582), (115, 69046), (158, 50255), (190, 41791), (230, 34523), (395, 20102), (437, 18170), (529, 15010), (790, 10051), (874, 9085), (1058, 7505), (1501, 5290), (1817, 4370), (2185, 3634), (2645, 3002)]