129643984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{261379}}^1$

素因数の和:261418

約数の個数: 20

約数和(自身を含む): 259288960

約数和(自身を除く): 129644976

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 261379, 522758, 1045516, 2091032, 4182064, 8102749, 16205498, 32410996, 64821992, 129643984]

約数ペア:

[(1, 129643984), (2, 64821992), (4, 32410996), (8, 16205498), (16, 8102749), (31, 4182064), (62, 2091032), (124, 1045516), (248, 522758), (496, 261379)]