20662140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:507

約数の個数: 96

約数和(自身を含む): 62705664

約数和(自身を除く): 42043524

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 47, 51, 60, 68, 85, 94, 102, 141, 170, 188, 204, 235, 255, 282, 340, 431, 470, 510, 564, 705, 799, 862, 940, 1020, 1293, 1410, 1598, 1724, 2155, 2397, 2586, 2820, 3196, 3995, 4310, 4794, 5172, 6465, 7327, 7990, 8620, 9588, 11985, 12930, 14654, 15980, 20257, 21981, 23970, 25860, 29308, 36635, 40514, 43962, 47940, 60771, 73270, 81028, 87924, 101285, 109905, 121542, 146540, 202570, 219810, 243084, 303855, 344369, 405140, 439620, 607710, 688738, 1033107, 1215420, 1377476, 1721845, 2066214, 3443690, 4132428, 5165535, 6887380, 10331070, 20662140]

約数ペア:

[(1, 20662140), (2, 10331070), (3, 6887380), (4, 5165535), (5, 4132428), (6, 3443690), (10, 2066214), (12, 1721845), (15, 1377476), (17, 1215420), (20, 1033107), (30, 688738), (34, 607710), (47, 439620), (51, 405140), (60, 344369), (68, 303855), (85, 243084), (94, 219810), (102, 202570), (141, 146540), (170, 121542), (188, 109905), (204, 101285), (235, 87924), (255, 81028), (282, 73270), (340, 60771), (431, 47940), (470, 43962), (510, 40514), (564, 36635), (705, 29308), (799, 25860), (862, 23970), (940, 21981), (1020, 20257), (1293, 15980), (1410, 14654), (1598, 12930), (1724, 11985), (2155, 9588), (2397, 8620), (2586, 7990), (2820, 7327), (3196, 6465), (3995, 5172), (4310, 4794)]