206996920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12841}}^1$

素因数の和:12896

約数の個数: 64

約数和(自身を含む): 517789440

約数和(自身を除く): 310792520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 12841, 16120, 25682, 51364, 64205, 102728, 128410, 166933, 256820, 333866, 398071, 513640, 667732, 796142, 834665, 1335464, 1592284, 1669330, 1990355, 3184568, 3338660, 3980710, 5174923, 6677320, 7961420, 10349846, 15922840, 20699692, 25874615, 41399384, 51749230, 103498460, 206996920]

約数ペア:

[(1, 206996920), (2, 103498460), (4, 51749230), (5, 41399384), (8, 25874615), (10, 20699692), (13, 15922840), (20, 10349846), (26, 7961420), (31, 6677320), (40, 5174923), (52, 3980710), (62, 3338660), (65, 3184568), (104, 1990355), (124, 1669330), (130, 1592284), (155, 1335464), (248, 834665), (260, 796142), (310, 667732), (403, 513640), (520, 398071), (620, 333866), (806, 256820), (1240, 166933), (1612, 128410), (2015, 102728), (3224, 64205), (4030, 51364), (8060, 25682), (12841, 16120)]