20481276

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{283}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 49556864

約数和(自身を除く): 29075588

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 163, 222, 283, 326, 444, 489, 566, 652, 849, 978, 1132, 1698, 1956, 3396, 6031, 10471, 12062, 18093, 20942, 24124, 31413, 36186, 41884, 46129, 62826, 72372, 92258, 125652, 138387, 184516, 276774, 553548, 1706773, 3413546, 5120319, 6827092, 10240638, 20481276]

約数ペア:

[(1, 20481276), (2, 10240638), (3, 6827092), (4, 5120319), (6, 3413546), (12, 1706773), (37, 553548), (74, 276774), (111, 184516), (148, 138387), (163, 125652), (222, 92258), (283, 72372), (326, 62826), (444, 46129), (489, 41884), (566, 36186), (652, 31413), (849, 24124), (978, 20942), (1132, 18093), (1698, 12062), (1956, 10471), (3396, 6031)]