21953920

素因数分解:

$2^7\times 5^1\times {\mathrm{34303}}^1$

素因数の和:34322

約数の個数: 32

約数和(自身を含む): 52485120

約数和(自身を除く): 30531200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 34303, 68606, 137212, 171515, 274424, 343030, 548848, 686060, 1097696, 1372120, 2195392, 2744240, 4390784, 5488480, 10976960, 21953920]

約数ペア:

[(1, 21953920), (2, 10976960), (4, 5488480), (5, 4390784), (8, 2744240), (10, 2195392), (16, 1372120), (20, 1097696), (32, 686060), (40, 548848), (64, 343030), (80, 274424), (128, 171515), (160, 137212), (320, 68606), (640, 34303)]