20996993880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19441661}}^1$

素因数の和:19441681

約数の個数: 64

約数和(自身を含む): 69989983200

約数和(自身を除く): 48992989320

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, 19441661, 38883322, 58324983, 77766644, 97208305, 116649966, 155533288, 174974949, 194416610, 233299932, 291624915, 349949898, 388833220, 466599864, 524924847, 583249830, 699899796, 777666440, 874874745, 1049849694, 1166499660, 1399799592, 1749749490, 2099699388, 2332999320, 2624624235, 3499498980, 4199398776, 5249248470, 6998997960, 10498496940, 20996993880]

約数ペア:

[(1, 20996993880), (2, 10498496940), (3, 6998997960), (4, 5249248470), (5, 4199398776), (6, 3499498980), (8, 2624624235), (9, 2332999320), (10, 2099699388), (12, 1749749490), (15, 1399799592), (18, 1166499660), (20, 1049849694), (24, 874874745), (27, 777666440), (30, 699899796), (36, 583249830), (40, 524924847), (45, 466599864), (54, 388833220), (60, 349949898), (72, 291624915), (90, 233299932), (108, 194416610), (120, 174974949), (135, 155533288), (180, 116649966), (216, 97208305), (270, 77766644), (360, 58324983), (540, 38883322), (1080, 19441661)]