20709120

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5393}}^1$

素因数の和:5417

約数の個数: 72

約数和(自身を含む): 66152016

約数和(自身を除く): 45442896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5393, 10786, 16179, 21572, 26965, 32358, 43144, 53930, 64716, 80895, 86288, 107860, 129432, 161790, 172576, 215720, 258864, 323580, 345152, 431440, 517728, 647160, 690304, 862880, 1035456, 1294320, 1380608, 1725760, 2070912, 2588640, 3451520, 4141824, 5177280, 6903040, 10354560, 20709120]

約数ペア:

[(1, 20709120), (2, 10354560), (3, 6903040), (4, 5177280), (5, 4141824), (6, 3451520), (8, 2588640), (10, 2070912), (12, 1725760), (15, 1380608), (16, 1294320), (20, 1035456), (24, 862880), (30, 690304), (32, 647160), (40, 517728), (48, 431440), (60, 345152), (64, 323580), (80, 258864), (96, 215720), (120, 172576), (128, 161790), (160, 129432), (192, 107860), (240, 86288), (256, 80895), (320, 64716), (384, 53930), (480, 43144), (640, 32358), (768, 26965), (960, 21572), (1280, 16179), (1920, 10786), (3840, 5393)]