20171639984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40668629}}^1$

素因数の和:40668668

約数の個数: 20

約数和(自身を含む): 40343280960

約数和(自身を除く): 20171640976

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40668629, 81337258, 162674516, 325349032, 650698064, 1260727499, 2521454998, 5042909996, 10085819992, 20171639984]

約数ペア:

[(1, 20171639984), (2, 10085819992), (4, 5042909996), (8, 2521454998), (16, 1260727499), (31, 650698064), (62, 325349032), (124, 162674516), (248, 81337258), (496, 40668629)]