398903908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1889}}^1$

素因数の和:2068

約数の個数: 48

約数和(自身を含む): 782369280

約数和(自身を除く): 383465372

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 131, 262, 403, 524, 806, 1612, 1703, 1889, 3406, 3778, 4061, 6812, 7556, 8122, 16244, 24557, 49114, 52793, 58559, 98228, 105586, 117118, 211172, 234236, 247459, 494918, 761267, 989836, 1522534, 3045068, 3216967, 6433934, 7671229, 12867868, 15342458, 30684916, 99725977, 199451954, 398903908]

約数ペア:

[(1, 398903908), (2, 199451954), (4, 99725977), (13, 30684916), (26, 15342458), (31, 12867868), (52, 7671229), (62, 6433934), (124, 3216967), (131, 3045068), (262, 1522534), (403, 989836), (524, 761267), (806, 494918), (1612, 247459), (1703, 234236), (1889, 211172), (3406, 117118), (3778, 105586), (4061, 98228), (6812, 58559), (7556, 52793), (8122, 49114), (16244, 24557)]