19942450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{359}}^1$

素因数の和:483

約数の個数: 48

約数和(自身を含む): 40979520

約数和(自身を除く): 21037070

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 101, 110, 202, 275, 359, 505, 550, 718, 1010, 1111, 1795, 2222, 2525, 3590, 3949, 5050, 5555, 7898, 8975, 11110, 17950, 19745, 27775, 36259, 39490, 55550, 72518, 98725, 181295, 197450, 362590, 398849, 797698, 906475, 1812950, 1994245, 3988490, 9971225, 19942450]

約数ペア:

[(1, 19942450), (2, 9971225), (5, 3988490), (10, 1994245), (11, 1812950), (22, 906475), (25, 797698), (50, 398849), (55, 362590), (101, 197450), (110, 181295), (202, 98725), (275, 72518), (359, 55550), (505, 39490), (550, 36259), (718, 27775), (1010, 19745), (1111, 17950), (1795, 11110), (2222, 8975), (2525, 7898), (3590, 5555), (3949, 5050)]