19937880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{18461}}^1$

素因数の和:18481

約数の個数: 64

約数和(自身を含む): 66463200

約数和(自身を除く): 46525320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 18461, 36922, 55383, 73844, 92305, 110766, 147688, 166149, 184610, 221532, 276915, 332298, 369220, 443064, 498447, 553830, 664596, 738440, 830745, 996894, 1107660, 1329192, 1661490, 1993788, 2215320, 2492235, 3322980, 3987576, 4984470, 6645960, 9968940, 19937880]

約数ペア:

[(1, 19937880), (2, 9968940), (3, 6645960), (4, 4984470), (5, 3987576), (6, 3322980), (8, 2492235), (9, 2215320), (10, 1993788), (12, 1661490), (15, 1329192), (18, 1107660), (20, 996894), (24, 830745), (27, 738440), (30, 664596), (36, 553830), (40, 498447), (45, 443064), (54, 369220), (60, 332298), (72, 276915), (90, 221532), (108, 184610), (120, 166149), (135, 147688), (180, 110766), (216, 92305), (270, 73844), (360, 55383), (540, 36922), (1080, 18461)]