20881320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4703}}^1$

素因数の和:4754

約数の個数: 64

約数和(自身を含む): 64350720

約数和(自身を除く): 43469400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 4703, 9406, 14109, 18812, 23515, 28218, 37624, 47030, 56436, 70545, 94060, 112872, 141090, 174011, 188120, 282180, 348022, 522033, 564360, 696044, 870055, 1044066, 1392088, 1740110, 2088132, 2610165, 3480220, 4176264, 5220330, 6960440, 10440660, 20881320]

約数ペア:

[(1, 20881320), (2, 10440660), (3, 6960440), (4, 5220330), (5, 4176264), (6, 3480220), (8, 2610165), (10, 2088132), (12, 1740110), (15, 1392088), (20, 1044066), (24, 870055), (30, 696044), (37, 564360), (40, 522033), (60, 348022), (74, 282180), (111, 188120), (120, 174011), (148, 141090), (185, 112872), (222, 94060), (296, 70545), (370, 56436), (444, 47030), (555, 37624), (740, 28218), (888, 23515), (1110, 18812), (1480, 14109), (2220, 9406), (4440, 4703)]