39799980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20101}}^1$

素因数の和:20127

約数の個数: 72

約数和(自身を含む): 131708304

約数和(自身を除く): 91908324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 20101, 40202, 60303, 80404, 100505, 120606, 180909, 201010, 221111, 241212, 301515, 361818, 402020, 442222, 603030, 663333, 723636, 884444, 904545, 1105555, 1206060, 1326666, 1809090, 1989999, 2211110, 2653332, 3316665, 3618180, 3979998, 4422220, 6633330, 7959996, 9949995, 13266660, 19899990, 39799980]

約数ペア:

[(1, 39799980), (2, 19899990), (3, 13266660), (4, 9949995), (5, 7959996), (6, 6633330), (9, 4422220), (10, 3979998), (11, 3618180), (12, 3316665), (15, 2653332), (18, 2211110), (20, 1989999), (22, 1809090), (30, 1326666), (33, 1206060), (36, 1105555), (44, 904545), (45, 884444), (55, 723636), (60, 663333), (66, 603030), (90, 442222), (99, 402020), (110, 361818), (132, 301515), (165, 241212), (180, 221111), (198, 201010), (220, 180909), (330, 120606), (396, 100505), (495, 80404), (660, 60303), (990, 40202), (1980, 20101)]