64605880

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{16651}}^1$

素因数の和:16759

約数の個数: 32

約数和(自身を含む): 146870640

約数和(自身を除く): 82264760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 16651, 33302, 66604, 83255, 133208, 166510, 333020, 666040, 1615147, 3230294, 6460588, 8075735, 12921176, 16151470, 32302940, 64605880]

約数ペア:

[(1, 64605880), (2, 32302940), (4, 16151470), (5, 12921176), (8, 8075735), (10, 6460588), (20, 3230294), (40, 1615147), (97, 666040), (194, 333020), (388, 166510), (485, 133208), (776, 83255), (970, 66604), (1940, 33302), (3880, 16651)]