1339779940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1\times {\mathrm{2179}}^1$

素因数の和:2692

約数の個数: 48

約数和(自身を含む): 2861066880

約数和(自身を除く): 1521286940

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 433, 710, 866, 1420, 1732, 2165, 2179, 4330, 4358, 8660, 8716, 10895, 21790, 30743, 43580, 61486, 122972, 153715, 154709, 307430, 309418, 614860, 618836, 773545, 943507, 1547090, 1887014, 3094180, 3774028, 4717535, 9435070, 18870140, 66988997, 133977994, 267955988, 334944985, 669889970, 1339779940]

約数ペア:

[(1, 1339779940), (2, 669889970), (4, 334944985), (5, 267955988), (10, 133977994), (20, 66988997), (71, 18870140), (142, 9435070), (284, 4717535), (355, 3774028), (433, 3094180), (710, 1887014), (866, 1547090), (1420, 943507), (1732, 773545), (2165, 618836), (2179, 614860), (4330, 309418), (4358, 307430), (8660, 154709), (8716, 153715), (10895, 122972), (21790, 61486), (30743, 43580)]