20031880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{859}}^1$

素因数の和:934

約数の個数: 64

約数和(自身を含む): 50155200

約数和(自身を除く): 30123320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 212, 220, 265, 424, 440, 530, 583, 859, 1060, 1166, 1718, 2120, 2332, 2915, 3436, 4295, 4664, 5830, 6872, 8590, 9449, 11660, 17180, 18898, 23320, 34360, 37796, 45527, 47245, 75592, 91054, 94490, 182108, 188980, 227635, 364216, 377960, 455270, 500797, 910540, 1001594, 1821080, 2003188, 2503985, 4006376, 5007970, 10015940, 20031880]

約数ペア:

[(1, 20031880), (2, 10015940), (4, 5007970), (5, 4006376), (8, 2503985), (10, 2003188), (11, 1821080), (20, 1001594), (22, 910540), (40, 500797), (44, 455270), (53, 377960), (55, 364216), (88, 227635), (106, 188980), (110, 182108), (212, 94490), (220, 91054), (265, 75592), (424, 47245), (440, 45527), (530, 37796), (583, 34360), (859, 23320), (1060, 18898), (1166, 17180), (1718, 11660), (2120, 9449), (2332, 8590), (2915, 6872), (3436, 5830), (4295, 4664)]