2981055

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 6220800

約数和(自身を除く): 3239745

約数列:

[1, 3, 5, 7, 11, 15, 21, 29, 33, 35, 55, 77, 87, 89, 105, 145, 165, 203, 231, 267, 319, 385, 435, 445, 609, 623, 957, 979, 1015, 1155, 1335, 1595, 1869, 2233, 2581, 2937, 3045, 3115, 4785, 4895, 6699, 6853, 7743, 9345, 11165, 12905, 14685, 18067, 20559, 28391, 33495, 34265, 38715, 54201, 85173, 90335, 102795, 141955, 198737, 271005, 425865, 596211, 993685, 2981055]

約数ペア:

[(1, 2981055), (3, 993685), (5, 596211), (7, 425865), (11, 271005), (15, 198737), (21, 141955), (29, 102795), (33, 90335), (35, 85173), (55, 54201), (77, 38715), (87, 34265), (89, 33495), (105, 28391), (145, 20559), (165, 18067), (203, 14685), (231, 12905), (267, 11165), (319, 9345), (385, 7743), (435, 6853), (445, 6699), (609, 4895), (623, 4785), (957, 3115), (979, 3045), (1015, 2937), (1155, 2581), (1335, 2233), (1595, 1869)]