205129520

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{30893}}^1$

素因数の和:30989

約数の個数: 40

約数和(自身を含む): 482687856

約数和(自身を除く): 277558336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 6640, 30893, 61786, 123572, 154465, 247144, 308930, 494288, 617860, 1235720, 2471440, 2564119, 5128238, 10256476, 12820595, 20512952, 25641190, 41025904, 51282380, 102564760, 205129520]

約数ペア:

[(1, 205129520), (2, 102564760), (4, 51282380), (5, 41025904), (8, 25641190), (10, 20512952), (16, 12820595), (20, 10256476), (40, 5128238), (80, 2564119), (83, 2471440), (166, 1235720), (332, 617860), (415, 494288), (664, 308930), (830, 247144), (1328, 154465), (1660, 123572), (3320, 61786), (6640, 30893)]