81647515

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 107122176

約数和(自身を除く): 25474661

約数列:

[1, 5, 17, 71, 83, 85, 163, 355, 415, 815, 1207, 1411, 2771, 5893, 6035, 7055, 11573, 13529, 13855, 29465, 57865, 67645, 100181, 196741, 229993, 500905, 960559, 983705, 1149965, 4802795, 16329503, 81647515]

約数ペア:

[(1, 81647515), (5, 16329503), (17, 4802795), (71, 1149965), (83, 983705), (85, 960559), (163, 500905), (355, 229993), (415, 196741), (815, 100181), (1207, 67645), (1411, 57865), (2771, 29465), (5893, 13855), (6035, 13529), (7055, 11573)]