1288433920

素因数分解:

$2^8\times 5^1\times {\mathrm{1006589}}^1$

素因数の和:1006610

約数の個数: 36

約数和(自身を含む): 3086204940

約数和(自身を除く): 1797771020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1006589, 2013178, 4026356, 5032945, 8052712, 10065890, 16105424, 20131780, 32210848, 40263560, 64421696, 80527120, 128843392, 161054240, 257686784, 322108480, 644216960, 1288433920]

約数ペア:

[(1, 1288433920), (2, 644216960), (4, 322108480), (5, 257686784), (8, 161054240), (10, 128843392), (16, 80527120), (20, 64421696), (32, 40263560), (40, 32210848), (64, 20131780), (80, 16105424), (128, 10065890), (160, 8052712), (256, 5032945), (320, 4026356), (640, 2013178), (1280, 1006589)]