28078245

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5333}}^1$

素因数の和:5363

約数の個数: 40

約数和(自身を含む): 54214776

約数和(自身を除く): 26136531

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 5265, 5333, 15999, 26665, 47997, 69329, 79995, 143991, 207987, 239985, 346645, 431973, 623961, 719955, 1039935, 1871883, 2159865, 3119805, 5615649, 9359415, 28078245]

約数ペア:

[(1, 28078245), (3, 9359415), (5, 5615649), (9, 3119805), (13, 2159865), (15, 1871883), (27, 1039935), (39, 719955), (45, 623961), (65, 431973), (81, 346645), (117, 239985), (135, 207987), (195, 143991), (351, 79995), (405, 69329), (585, 47997), (1053, 26665), (1755, 15999), (5265, 5333)]