15500485

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 26449920

約数和(自身を除く): 10949435

約数列:

[1, 5, 7, 11, 13, 19, 35, 55, 65, 77, 91, 95, 133, 143, 163, 209, 247, 385, 455, 665, 715, 815, 1001, 1045, 1141, 1235, 1463, 1729, 1793, 2119, 2717, 3097, 5005, 5705, 7315, 8645, 8965, 10595, 12551, 13585, 14833, 15485, 19019, 21679, 23309, 34067, 40261, 62755, 74165, 95095, 108395, 116545, 163163, 170335, 201305, 238469, 281827, 442871, 815815, 1192345, 1409135, 2214355, 3100097, 15500485]

約数ペア:

[(1, 15500485), (5, 3100097), (7, 2214355), (11, 1409135), (13, 1192345), (19, 815815), (35, 442871), (55, 281827), (65, 238469), (77, 201305), (91, 170335), (95, 163163), (133, 116545), (143, 108395), (163, 95095), (209, 74165), (247, 62755), (385, 40261), (455, 34067), (665, 23309), (715, 21679), (815, 19019), (1001, 15485), (1045, 14833), (1141, 13585), (1235, 12551), (1463, 10595), (1729, 8965), (1793, 8645), (2119, 7315), (2717, 5705), (3097, 5005)]