20765580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:527

約数の個数: 96

約数和(自身を含む): 64447488

約数和(自身を除く): 43681908

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 73, 110, 132, 146, 165, 219, 220, 292, 330, 365, 431, 438, 660, 730, 803, 862, 876, 1095, 1293, 1460, 1606, 1724, 2155, 2190, 2409, 2586, 3212, 4015, 4310, 4380, 4741, 4818, 5172, 6465, 8030, 8620, 9482, 9636, 12045, 12930, 14223, 16060, 18964, 23705, 24090, 25860, 28446, 31463, 47410, 48180, 56892, 62926, 71115, 94389, 94820, 125852, 142230, 157315, 188778, 284460, 314630, 346093, 377556, 471945, 629260, 692186, 943890, 1038279, 1384372, 1730465, 1887780, 2076558, 3460930, 4153116, 5191395, 6921860, 10382790, 20765580]

約数ペア:

[(1, 20765580), (2, 10382790), (3, 6921860), (4, 5191395), (5, 4153116), (6, 3460930), (10, 2076558), (11, 1887780), (12, 1730465), (15, 1384372), (20, 1038279), (22, 943890), (30, 692186), (33, 629260), (44, 471945), (55, 377556), (60, 346093), (66, 314630), (73, 284460), (110, 188778), (132, 157315), (146, 142230), (165, 125852), (219, 94820), (220, 94389), (292, 71115), (330, 62926), (365, 56892), (431, 48180), (438, 47410), (660, 31463), (730, 28446), (803, 25860), (862, 24090), (876, 23705), (1095, 18964), (1293, 16060), (1460, 14223), (1606, 12930), (1724, 12045), (2155, 9636), (2190, 9482), (2409, 8620), (2586, 8030), (3212, 6465), (4015, 5172), (4310, 4818), (4380, 4741)]