1289339940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{438551}}^1$

素因数の和:438577

約数の個数: 72

約数和(自身を含む): 4199573952

約数和(自身を除く): 2910234012

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 438551, 877102, 1315653, 1754204, 2192755, 2631306, 3069857, 4385510, 5262612, 6139714, 6578265, 8771020, 9209571, 12279428, 13156530, 15349285, 18419142, 21488999, 26313060, 30698570, 36838284, 42977998, 46047855, 61397140, 64466997, 85955996, 92095710, 107444995, 128933994, 184191420, 214889990, 257867988, 322334985, 429779980, 644669970, 1289339940]

約数ペア:

[(1, 1289339940), (2, 644669970), (3, 429779980), (4, 322334985), (5, 257867988), (6, 214889990), (7, 184191420), (10, 128933994), (12, 107444995), (14, 92095710), (15, 85955996), (20, 64466997), (21, 61397140), (28, 46047855), (30, 42977998), (35, 36838284), (42, 30698570), (49, 26313060), (60, 21488999), (70, 18419142), (84, 15349285), (98, 13156530), (105, 12279428), (140, 9209571), (147, 8771020), (196, 6578265), (210, 6139714), (245, 5262612), (294, 4385510), (420, 3069857), (490, 2631306), (588, 2192755), (735, 1754204), (980, 1315653), (1470, 877102), (2940, 438551)]