15721493775

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{556021}}^1$

素因数の和:556076

約数の個数: 48

約数和(自身を含む): 28957625760

約数和(自身を除く): 13236131985

約数列:

[1, 3, 5, 13, 15, 25, 29, 39, 65, 75, 87, 145, 195, 325, 377, 435, 725, 975, 1131, 1885, 2175, 5655, 9425, 28275, 556021, 1668063, 2780105, 7228273, 8340315, 13900525, 16124609, 21684819, 36141365, 41701575, 48373827, 80623045, 108424095, 180706825, 209619917, 241869135, 403115225, 542120475, 628859751, 1048099585, 1209345675, 3144298755, 5240497925, 15721493775]

約数ペア:

[(1, 15721493775), (3, 5240497925), (5, 3144298755), (13, 1209345675), (15, 1048099585), (25, 628859751), (29, 542120475), (39, 403115225), (65, 241869135), (75, 209619917), (87, 180706825), (145, 108424095), (195, 80623045), (325, 48373827), (377, 41701575), (435, 36141365), (725, 21684819), (975, 16124609), (1131, 13900525), (1885, 8340315), (2175, 7228273), (5655, 2780105), (9425, 1668063), (28275, 556021)]