644386275

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12959}}^1$

素因数の和:13005

約数の個数: 72

約数和(自身を含む): 1316165760

約数和(自身を除く): 671779485

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 39, 45, 51, 65, 75, 85, 117, 153, 195, 221, 225, 255, 325, 425, 585, 663, 765, 975, 1105, 1275, 1989, 2925, 3315, 3825, 5525, 9945, 12959, 16575, 38877, 49725, 64795, 116631, 168467, 194385, 220303, 323975, 505401, 583155, 660909, 842335, 971925, 1101515, 1516203, 1982727, 2527005, 2863939, 2915775, 3304545, 4211675, 5507575, 7581015, 8591817, 9913635, 12635025, 14319695, 16522725, 25775451, 37905075, 42959085, 49568175, 71598475, 128877255, 214795425, 644386275]

約数ペア:

[(1, 644386275), (3, 214795425), (5, 128877255), (9, 71598475), (13, 49568175), (15, 42959085), (17, 37905075), (25, 25775451), (39, 16522725), (45, 14319695), (51, 12635025), (65, 9913635), (75, 8591817), (85, 7581015), (117, 5507575), (153, 4211675), (195, 3304545), (221, 2915775), (225, 2863939), (255, 2527005), (325, 1982727), (425, 1516203), (585, 1101515), (663, 971925), (765, 842335), (975, 660909), (1105, 583155), (1275, 505401), (1989, 323975), (2925, 220303), (3315, 194385), (3825, 168467), (5525, 116631), (9945, 64795), (12959, 49725), (16575, 38877)]