20153880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{18661}}^1$

素因数の和:18681

約数の個数: 64

約数和(自身を含む): 67183200

約数和(自身を除く): 47029320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 18661, 37322, 55983, 74644, 93305, 111966, 149288, 167949, 186610, 223932, 279915, 335898, 373220, 447864, 503847, 559830, 671796, 746440, 839745, 1007694, 1119660, 1343592, 1679490, 2015388, 2239320, 2519235, 3358980, 4030776, 5038470, 6717960, 10076940, 20153880]

約数ペア:

[(1, 20153880), (2, 10076940), (3, 6717960), (4, 5038470), (5, 4030776), (6, 3358980), (8, 2519235), (9, 2239320), (10, 2015388), (12, 1679490), (15, 1343592), (18, 1119660), (20, 1007694), (24, 839745), (27, 746440), (30, 671796), (36, 559830), (40, 503847), (45, 447864), (54, 373220), (60, 335898), (72, 279915), (90, 223932), (108, 186610), (120, 167949), (135, 149288), (180, 111966), (216, 93305), (270, 74644), (360, 55983), (540, 37322), (1080, 18661)]