261569204

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{887}}^1$

素因数の和:1064

約数の個数: 48

約数和(自身を含む): 507523968

約数和(自身を除く): 245954764

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 107, 212, 214, 428, 689, 887, 1378, 1391, 1774, 2756, 2782, 3548, 5564, 5671, 11342, 11531, 22684, 23062, 46124, 47011, 73723, 94022, 94909, 147446, 188044, 189818, 294892, 379636, 611143, 1222286, 1233817, 2444572, 2467634, 4935268, 5030177, 10060354, 20120708, 65392301, 130784602, 261569204]

約数ペア:

[(1, 261569204), (2, 130784602), (4, 65392301), (13, 20120708), (26, 10060354), (52, 5030177), (53, 4935268), (106, 2467634), (107, 2444572), (212, 1233817), (214, 1222286), (428, 611143), (689, 379636), (887, 294892), (1378, 189818), (1391, 188044), (1774, 147446), (2756, 94909), (2782, 94022), (3548, 73723), (5564, 47011), (5671, 46124), (11342, 23062), (11531, 22684)]