78741880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{12227}}^1$

素因数の和:12268

約数の個数: 64

約数和(自身を含む): 211299840

約数和(自身を除く): 132557960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 12227, 24454, 48908, 61135, 85589, 97816, 122270, 171178, 244540, 281221, 342356, 427945, 489080, 562442, 684712, 855890, 1124884, 1406105, 1711780, 1968547, 2249768, 2812210, 3423560, 3937094, 5624420, 7874188, 9842735, 11248840, 15748376, 19685470, 39370940, 78741880]

約数ペア:

[(1, 78741880), (2, 39370940), (4, 19685470), (5, 15748376), (7, 11248840), (8, 9842735), (10, 7874188), (14, 5624420), (20, 3937094), (23, 3423560), (28, 2812210), (35, 2249768), (40, 1968547), (46, 1711780), (56, 1406105), (70, 1124884), (92, 855890), (115, 684712), (140, 562442), (161, 489080), (184, 427945), (230, 342356), (280, 281221), (322, 244540), (460, 171178), (644, 122270), (805, 97816), (920, 85589), (1288, 61135), (1610, 48908), (3220, 24454), (6440, 12227)]