90177920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{20129}}^1$

素因数の和:20155

約数の個数: 64

約数和(自身を含む): 246391200

約数和(自身を除く): 156213280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 20129, 40258, 80516, 100645, 140903, 161032, 201290, 281806, 322064, 402580, 563612, 644128, 704515, 805160, 1127224, 1288256, 1409030, 1610320, 2254448, 2576512, 2818060, 3220640, 4508896, 5636120, 6441280, 9017792, 11272240, 12882560, 18035584, 22544480, 45088960, 90177920]

約数ペア:

[(1, 90177920), (2, 45088960), (4, 22544480), (5, 18035584), (7, 12882560), (8, 11272240), (10, 9017792), (14, 6441280), (16, 5636120), (20, 4508896), (28, 3220640), (32, 2818060), (35, 2576512), (40, 2254448), (56, 1610320), (64, 1409030), (70, 1288256), (80, 1127224), (112, 805160), (128, 704515), (140, 644128), (160, 563612), (224, 402580), (280, 322064), (320, 281806), (448, 201290), (560, 161032), (640, 140903), (896, 100645), (1120, 80516), (2240, 40258), (4480, 20129)]