638978030

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1558483}}^1$

素因数の和:1558531

約数の個数: 16

約数和(自身を含む): 1178213904

約数和(自身を除く): 539235874

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 1558483, 3116966, 7792415, 15584830, 63897803, 127795606, 319489015, 638978030]

約数ペア:

[(1, 638978030), (2, 319489015), (5, 127795606), (10, 63897803), (41, 15584830), (82, 7792415), (205, 3116966), (410, 1558483)]