20008520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3761}}^1$

素因数の和:3798

約数の個数: 64

約数和(自身を含む): 54172800

約数和(自身を除く): 34164280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3761, 5320, 7522, 15044, 18805, 26327, 30088, 37610, 52654, 71459, 75220, 105308, 131635, 142918, 150440, 210616, 263270, 285836, 357295, 500213, 526540, 571672, 714590, 1000426, 1053080, 1429180, 2000852, 2501065, 2858360, 4001704, 5002130, 10004260, 20008520]

約数ペア:

[(1, 20008520), (2, 10004260), (4, 5002130), (5, 4001704), (7, 2858360), (8, 2501065), (10, 2000852), (14, 1429180), (19, 1053080), (20, 1000426), (28, 714590), (35, 571672), (38, 526540), (40, 500213), (56, 357295), (70, 285836), (76, 263270), (95, 210616), (133, 150440), (140, 142918), (152, 131635), (190, 105308), (266, 75220), (280, 71459), (380, 52654), (532, 37610), (665, 30088), (760, 26327), (1064, 18805), (1330, 15044), (2660, 7522), (3761, 5320)]