28787265

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 56448000

約数和(自身を除く): 27660735

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 47, 65, 117, 135, 141, 195, 235, 349, 351, 423, 585, 611, 705, 1047, 1269, 1745, 1755, 1833, 2115, 3055, 3141, 4537, 5235, 5499, 6345, 9165, 9423, 13611, 15705, 16403, 16497, 22685, 27495, 40833, 47115, 49209, 68055, 82015, 82485, 122499, 147627, 204165, 213239, 246045, 442881, 612495, 639717, 738135, 1066195, 1919151, 2214405, 3198585, 5757453, 9595755, 28787265]

約数ペア:

[(1, 28787265), (3, 9595755), (5, 5757453), (9, 3198585), (13, 2214405), (15, 1919151), (27, 1066195), (39, 738135), (45, 639717), (47, 612495), (65, 442881), (117, 246045), (135, 213239), (141, 204165), (195, 147627), (235, 122499), (349, 82485), (351, 82015), (423, 68055), (585, 49209), (611, 47115), (705, 40833), (1047, 27495), (1269, 22685), (1745, 16497), (1755, 16403), (1833, 15705), (2115, 13611), (3055, 9423), (3141, 9165), (4537, 6345), (5235, 5499)]