1279265575

素因数分解:

$5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{691}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 1853452800

約数和(自身を除く): 574187225

約数列:

[1, 5, 7, 25, 35, 71, 149, 175, 355, 497, 691, 745, 1043, 1775, 2485, 3455, 3725, 4837, 5215, 10579, 12425, 17275, 24185, 26075, 49061, 52895, 74053, 102959, 120925, 245305, 264475, 343427, 370265, 514795, 720713, 1226525, 1717135, 1851325, 2573975, 3603565, 7310089, 8585675, 18017825, 36550445, 51170623, 182752225, 255853115, 1279265575]

約数ペア:

[(1, 1279265575), (5, 255853115), (7, 182752225), (25, 51170623), (35, 36550445), (71, 18017825), (149, 8585675), (175, 7310089), (355, 3603565), (497, 2573975), (691, 1851325), (745, 1717135), (1043, 1226525), (1775, 720713), (2485, 514795), (3455, 370265), (3725, 343427), (4837, 264475), (5215, 245305), (10579, 120925), (12425, 102959), (17275, 74053), (24185, 52895), (26075, 49061)]