647432842

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{643}}^1$

素因数の和:787

約数の個数: 64

約数和(自身を含む): 1201858560

約数和(自身を除く): 554425718

約数列:

[1, 2, 7, 14, 23, 46, 53, 59, 106, 118, 161, 322, 371, 413, 643, 742, 826, 1219, 1286, 1357, 2438, 2714, 3127, 4501, 6254, 8533, 9002, 9499, 14789, 17066, 18998, 21889, 29578, 34079, 37937, 43778, 68158, 71921, 75874, 103523, 143842, 207046, 238553, 265559, 477106, 503447, 531118, 783817, 872551, 1006894, 1567634, 1745102, 2010661, 4021322, 5486719, 6107857, 10973438, 12215714, 14074627, 28149254, 46245203, 92490406, 323716421, 647432842]

約数ペア:

[(1, 647432842), (2, 323716421), (7, 92490406), (14, 46245203), (23, 28149254), (46, 14074627), (53, 12215714), (59, 10973438), (106, 6107857), (118, 5486719), (161, 4021322), (322, 2010661), (371, 1745102), (413, 1567634), (643, 1006894), (742, 872551), (826, 783817), (1219, 531118), (1286, 503447), (1357, 477106), (2438, 265559), (2714, 238553), (3127, 207046), (4501, 143842), (6254, 103523), (8533, 75874), (9002, 71921), (9499, 68158), (14789, 43778), (17066, 37937), (18998, 34079), (21889, 29578)]