20476528

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{349}}^1$

素因数の和:569

約数の個数: 40

約数和(自身を含む): 42098000

約数和(自身を除く): 21621472

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 193, 304, 349, 386, 698, 772, 1396, 1544, 2792, 3088, 3667, 5584, 6631, 7334, 13262, 14668, 26524, 29336, 53048, 58672, 67357, 106096, 134714, 269428, 538856, 1077712, 1279783, 2559566, 5119132, 10238264, 20476528]

約数ペア:

[(1, 20476528), (2, 10238264), (4, 5119132), (8, 2559566), (16, 1279783), (19, 1077712), (38, 538856), (76, 269428), (152, 134714), (193, 106096), (304, 67357), (349, 58672), (386, 53048), (698, 29336), (772, 26524), (1396, 14668), (1544, 13262), (2792, 7334), (3088, 6631), (3667, 5584)]