19651610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:287

約数の個数: 48

約数和(自身を含む): 39501000

約数和(自身を除く): 19849390

約数列:

[1, 2, 5, 10, 11, 22, 55, 109, 110, 121, 149, 218, 242, 298, 545, 605, 745, 1090, 1199, 1210, 1490, 1639, 2398, 3278, 5995, 8195, 11990, 13189, 16241, 16390, 18029, 26378, 32482, 36058, 65945, 81205, 90145, 131890, 162410, 178651, 180290, 357302, 893255, 1786510, 1965161, 3930322, 9825805, 19651610]

約数ペア:

[(1, 19651610), (2, 9825805), (5, 3930322), (10, 1965161), (11, 1786510), (22, 893255), (55, 357302), (109, 180290), (110, 178651), (121, 162410), (149, 131890), (218, 90145), (242, 81205), (298, 65945), (545, 36058), (605, 32482), (745, 26378), (1090, 18029), (1199, 16390), (1210, 16241), (1490, 13189), (1639, 11990), (2398, 8195), (3278, 5995)]