28019745

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 52782912

約数和(自身を除く): 24763167

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 211, 227, 585, 633, 681, 1055, 1135, 1899, 2043, 2743, 2951, 3165, 3405, 8229, 8853, 9495, 10215, 13715, 14755, 24687, 26559, 41145, 44265, 47897, 123435, 132795, 143691, 239485, 431073, 622661, 718455, 1867983, 2155365, 3113305, 5603949, 9339915, 28019745]

約数ペア:

[(1, 28019745), (3, 9339915), (5, 5603949), (9, 3113305), (13, 2155365), (15, 1867983), (39, 718455), (45, 622661), (65, 431073), (117, 239485), (195, 143691), (211, 132795), (227, 123435), (585, 47897), (633, 44265), (681, 41145), (1055, 26559), (1135, 24687), (1899, 14755), (2043, 13715), (2743, 10215), (2951, 9495), (3165, 8853), (3405, 8229)]