20488005

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3229}}^1$

素因数の和:3290

約数の個数: 32

約数和(自身を含む): 37209600

約数和(自身を除く): 16721595

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 135, 141, 235, 423, 705, 1269, 2115, 3229, 6345, 9687, 16145, 29061, 48435, 87183, 145305, 151763, 435915, 455289, 758815, 1365867, 2276445, 4097601, 6829335, 20488005]

約数ペア:

[(1, 20488005), (3, 6829335), (5, 4097601), (9, 2276445), (15, 1365867), (27, 758815), (45, 455289), (47, 435915), (135, 151763), (141, 145305), (235, 87183), (423, 48435), (705, 29061), (1269, 16145), (2115, 9687), (3229, 6345)]