28593920

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:361

約数の個数: 72

約数和(自身を含む): 69536880

約数和(自身を除く): 40942960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 251, 256, 320, 356, 445, 502, 640, 712, 890, 1004, 1255, 1280, 1424, 1780, 2008, 2510, 2848, 3560, 4016, 5020, 5696, 7120, 8032, 10040, 11392, 14240, 16064, 20080, 22339, 22784, 28480, 32128, 40160, 44678, 56960, 64256, 80320, 89356, 111695, 113920, 160640, 178712, 223390, 321280, 357424, 446780, 714848, 893560, 1429696, 1787120, 2859392, 3574240, 5718784, 7148480, 14296960, 28593920]

約数ペア:

[(1, 28593920), (2, 14296960), (4, 7148480), (5, 5718784), (8, 3574240), (10, 2859392), (16, 1787120), (20, 1429696), (32, 893560), (40, 714848), (64, 446780), (80, 357424), (89, 321280), (128, 223390), (160, 178712), (178, 160640), (251, 113920), (256, 111695), (320, 89356), (356, 80320), (445, 64256), (502, 56960), (640, 44678), (712, 40160), (890, 32128), (1004, 28480), (1255, 22784), (1280, 22339), (1424, 20080), (1780, 16064), (2008, 14240), (2510, 11392), (2848, 10040), (3560, 8032), (4016, 7120), (5020, 5696)]