221000320

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2719}}^1$

素因数の和:2865

約数の個数: 64

約数和(自身を含む): 532684800

約数和(自身を除く): 311684480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 508, 635, 640, 1016, 1270, 2032, 2540, 2719, 4064, 5080, 5438, 8128, 10160, 10876, 13595, 16256, 20320, 21752, 27190, 40640, 43504, 54380, 81280, 87008, 108760, 174016, 217520, 345313, 348032, 435040, 690626, 870080, 1381252, 1726565, 1740160, 2762504, 3453130, 5525008, 6906260, 11050016, 13812520, 22100032, 27625040, 44200064, 55250080, 110500160, 221000320]

約数ペア:

[(1, 221000320), (2, 110500160), (4, 55250080), (5, 44200064), (8, 27625040), (10, 22100032), (16, 13812520), (20, 11050016), (32, 6906260), (40, 5525008), (64, 3453130), (80, 2762504), (127, 1740160), (128, 1726565), (160, 1381252), (254, 870080), (320, 690626), (508, 435040), (635, 348032), (640, 345313), (1016, 217520), (1270, 174016), (2032, 108760), (2540, 87008), (2719, 81280), (4064, 54380), (5080, 43504), (5438, 40640), (8128, 27190), (10160, 21752), (10876, 20320), (13595, 16256)]