12803740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 28086912

約数和(自身を除く): 15283172

約数列:

[1, 2, 4, 5, 10, 20, 47, 53, 94, 106, 188, 212, 235, 257, 265, 470, 514, 530, 940, 1028, 1060, 1285, 2491, 2570, 4982, 5140, 9964, 12079, 12455, 13621, 24158, 24910, 27242, 48316, 49820, 54484, 60395, 68105, 120790, 136210, 241580, 272420, 640187, 1280374, 2560748, 3200935, 6401870, 12803740]

約数ペア:

[(1, 12803740), (2, 6401870), (4, 3200935), (5, 2560748), (10, 1280374), (20, 640187), (47, 272420), (53, 241580), (94, 136210), (106, 120790), (188, 68105), (212, 60395), (235, 54484), (257, 49820), (265, 48316), (470, 27242), (514, 24910), (530, 24158), (940, 13621), (1028, 12455), (1060, 12079), (1285, 9964), (2491, 5140), (2570, 4982)]