80397520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{143567}}^1$

素因数の和:143587

約数の個数: 40

約数和(自身を含む): 213629184

約数和(自身を除く): 133231664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 143567, 287134, 574268, 717835, 1004969, 1148536, 1435670, 2009938, 2297072, 2871340, 4019876, 5024845, 5742680, 8039752, 10049690, 11485360, 16079504, 20099380, 40198760, 80397520]

約数ペア:

[(1, 80397520), (2, 40198760), (4, 20099380), (5, 16079504), (7, 11485360), (8, 10049690), (10, 8039752), (14, 5742680), (16, 5024845), (20, 4019876), (28, 2871340), (35, 2297072), (40, 2009938), (56, 1435670), (70, 1148536), (80, 1004969), (112, 717835), (140, 574268), (280, 287134), (560, 143567)]