20178076784

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{150907}}^1$

素因数の和:151113

約数の個数: 40

約数和(自身を含む): 40026234288

約数和(自身を除く): 19848157504

約数列:

[1, 2, 4, 8, 16, 61, 122, 137, 244, 274, 488, 548, 976, 1096, 2192, 8357, 16714, 33428, 66856, 133712, 150907, 301814, 603628, 1207256, 2414512, 9205327, 18410654, 20674259, 36821308, 41348518, 73642616, 82697036, 147285232, 165394072, 330788144, 1261129799, 2522259598, 5044519196, 10089038392, 20178076784]

約数ペア:

[(1, 20178076784), (2, 10089038392), (4, 5044519196), (8, 2522259598), (16, 1261129799), (61, 330788144), (122, 165394072), (137, 147285232), (244, 82697036), (274, 73642616), (488, 41348518), (548, 36821308), (976, 20674259), (1096, 18410654), (2192, 9205327), (8357, 2414512), (16714, 1207256), (33428, 603628), (66856, 301814), (133712, 150907)]