19968930

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:385

約数の個数: 80

約数和(自身を含む): 54493560

約数和(自身を除く): 34524630

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 89, 90, 135, 162, 178, 267, 270, 277, 405, 445, 534, 554, 801, 810, 831, 890, 1335, 1385, 1602, 1662, 2403, 2493, 2670, 2770, 4005, 4155, 4806, 4986, 7209, 7479, 8010, 8310, 12015, 12465, 14418, 14958, 22437, 24030, 24653, 24930, 36045, 37395, 44874, 49306, 72090, 73959, 74790, 112185, 123265, 147918, 221877, 224370, 246530, 369795, 443754, 665631, 739590, 1109385, 1331262, 1996893, 2218770, 3328155, 3993786, 6656310, 9984465, 19968930]

約数ペア:

[(1, 19968930), (2, 9984465), (3, 6656310), (5, 3993786), (6, 3328155), (9, 2218770), (10, 1996893), (15, 1331262), (18, 1109385), (27, 739590), (30, 665631), (45, 443754), (54, 369795), (81, 246530), (89, 224370), (90, 221877), (135, 147918), (162, 123265), (178, 112185), (267, 74790), (270, 73959), (277, 72090), (405, 49306), (445, 44874), (534, 37395), (554, 36045), (801, 24930), (810, 24653), (831, 24030), (890, 22437), (1335, 14958), (1385, 14418), (1602, 12465), (1662, 12015), (2403, 8310), (2493, 8010), (2670, 7479), (2770, 7209), (4005, 4986), (4155, 4806)]