20641860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2797}}^1$

素因数の和:2853

約数の個数: 72

約数和(自身を含む): 64163736

約数和(自身を除く): 43521876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2797, 3690, 5594, 7380, 8391, 11188, 13985, 16782, 25173, 27970, 33564, 41955, 50346, 55940, 83910, 100692, 114677, 125865, 167820, 229354, 251730, 344031, 458708, 503460, 573385, 688062, 1032093, 1146770, 1376124, 1720155, 2064186, 2293540, 3440310, 4128372, 5160465, 6880620, 10320930, 20641860]

約数ペア:

[(1, 20641860), (2, 10320930), (3, 6880620), (4, 5160465), (5, 4128372), (6, 3440310), (9, 2293540), (10, 2064186), (12, 1720155), (15, 1376124), (18, 1146770), (20, 1032093), (30, 688062), (36, 573385), (41, 503460), (45, 458708), (60, 344031), (82, 251730), (90, 229354), (123, 167820), (164, 125865), (180, 114677), (205, 100692), (246, 83910), (369, 55940), (410, 50346), (492, 41955), (615, 33564), (738, 27970), (820, 25173), (1230, 16782), (1476, 13985), (1845, 11188), (2460, 8391), (2797, 7380), (3690, 5594)]